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Managing Director
Zarazma Minerals Studies Company
Operations Manager
GEOSTATS PTY LTD
has participated in the April 2020
Geostats Survey of International Laboratories
S. Romero
Ph: (+618) 9314 2566, Fax: (+618) 9314 3699
Certificate of Participation
This is to certify that
Mining Industry Consultants
Reference Material Manufacture and Sales
www.geostats.com.au
20 Hines Road, O'Connor
WESTERN AUSTRALIA 6163
P.J. Hayes
Geostats Laboratory Survey
April 2020
Prepared for
Zarazma Minerals Studies Company
Confidential
To the reader,
Kind regards,
Stuart Romero BSc, BEng
Operations Manager | Geostats Pty Ltd
20 Hines Road, O'Connor, Western Australia 6163, AustraliaPh: +618 9314 2566 | Email: [email protected] | Website: www.geostats.com.au
It is not the intent of this survey to provide marketing tools for the analytical industry. A
laboratory report is available which identifies only the laboratory or group requesting the
report. This allows the laboratory to assess their performance in relation to the rest of the
analytical industry. All the laboratories identified have taken advantage of this report and
included it as part of their ongoing quality control procedures. Participation in these
surveys is an indication of the laboratory's interest in quality and should be regarded as a
positive sign regardless of the outcome.
Many thanks to both the laboratories and the Mining Houses for their ongoing support of
this survey.
THIS IS A CONFIDENTIAL DOCUMENT BETWEEN GEOSTATS PTY LTD, CLIENT MINING
HOUSES AND CLIENT ANALYTICAL COMPANIES.
THIS DOCUMENT SHOULD NOT BE CIRCULATED OUTSIDE THE COMPANY WHOSE
NAME APPEARS ON THE COVER.
This survey of laboratories undertaken by Geostats is performed as a service to both the
Mining Industry and the Analytical Industry. It is envisaged that it can be used as a tool for
the maintenance of high standards in both industries.
The report to the Mining Houses identifies most commercial laboratories and should be
treated as confidential information. Some commercial facilities prefer to pay for the
inclusion of their sites and these are not identified to the Mining Houses. This report
should not be circulated outside of the Client Company or reproduced for the benefit of
other mining groups.
Geostats Pty Ltd, O'Connor, Western Australia
Listing of Participating Laboratories for Round Robin - April 2020
Western Australia Kyrgyz Republic
ALSM KAL ALS Minerals - Kalgoorlie SAEL KYRGYZSTAN Stewart Assay and Environmental Laboratories LLC
ALSM METALLURGY Ammtec Laboratory Lao PDR
ALSM PERTH ALS Minerals - Perth ALSM LAOS ALS Minerals Vientiane (Laos)
AURUM BECK Aurum Laboratories Pty Ltd PHU BIA LAOS Phu Bia Mining Limited
BV ULTRA TRACE Ultra Trace Pty Ltd SEPON LAOS Lane Xang Minerals
GEKKO VICTORIA Gekko Assay Laboratory Malaysia
GOLDEN GROVE EMR Golden Grove SGMM SGMM Assay Laboratory
GRANNYS Granny Smith Gold Mine Laboratory Mali
INT GEN PER Genalysis Laboratory Services Pty Ltd SADIOLA MALI Sadiola Mine Site Laboratory
JINNING WA Jinning Testing and Inspection SGS BAMAKO SGS Minerals Services (Bamako)
KAL PER Kalassay Group (Perth Assay Laboratory) SGS LOULO SGS Loulo
KALGOORLIE AL Kalassay Group (Kalgoorlie Assay Laboratory) SGS MALI GCEX Analabs Morila Laboratory
LABWEST LabWest SGS SYAMA SGS Minerals Syama Laboratory
MINANALYTICAL MinAnalytical Mexico
MINANALYTICAL PA MinAnalytical PA ACTLABS MEXICO Actlabs Mexico SA de CV
NEWCREST TELFER Newcrest Mining Limited - Telfer Gold Mine Lab BV MINERALS MEX Inspectorate de México S.A. de C.V.
SAR LAB Standard & Reference Laboratories CUZCATLAN MEXICO Compañía Minera Cuzcatlán S. A. de C. V.
SGS KALG SGS Kalgoorlie MCEWEN MEXICO McEwen Mining Mexico
SGS NEWBURN SGS Newburn MULATOS SONORA Alamos Gold - Mulatos Mine
SGS TROPICANA SGS Tropicana PENASQUITO Goldcorp - Penasquito
New South Wales Mongolia
ALSM ORANGE ALS Minerals - Orange ALSM MONGOLIA ALS Group LLC
NEWCREST ORANGE Newcrest Laboratory Services Orange ALSM OY ALSM OY
SGS WEST WYALONG SGS West Wyalong Namibia
Northern Territory DUNDEE PMT Dundee Precious Metals Tsumeb
INT DARWIN Northern Territory Environmental Laboratories New Zealand
NEWMONT TANAMI Granites Gold Mine SGS NZ MACRAES SGS New Zealand, Macraes Laboratory
Queensland SGS NZ WAIHI SGS New Zealand, Minerals Laboratory
ALSM BRIS ALS Minerals - Brisbane Papua New Guinea
ALSM MT ISA ALS Minerals - Mt Isa INTERTEK HV Intertek Hidden Valley
ALSM TVL ALS Minerals - Townsville ITS K92 PNG ITS (PNG) Limited K92 Laboratory
CHEM LAB MIM Mount Isa Mines Analytical Laboratory ITS MOROBE ITS (PNG) Limited
EH MINE Ernest Henry Mine Laboratory LIHIR Lihir Gold - Minesite Laboratory
GEN TOWNSVILLE Genalysis Testing Services, Townsville OK TEDI Ok Tedi
HRLTESTING HRL Testing PORGERA Porgera Gold Mine Laboratory
SGS TOWNSVILLE SGS Townsville Peru
South Australia ALSM LIMA ALS Peru SA
BV ADL Bureau Veritas Minerals - Thebarton ENSAYOS PERU Ensayos Tecnicos Labmin SRL.
INT GEN ADEL Genalysis Laboratory Services - Adelaide INSPECTORATE PERU Inspectorate Services Peru SAC
Tasmania NEW PERU Minera Yanacocha SRL - Newmont Lab (Peru)
ALSM BURNIE Burnie Research Laboratory SGS LIMA SGS del Peru SAC
Argentina Philippines
ASA MENDOZA Alex Stewart International Argentina SA - Mendoza ITS PHILIPPINES Intertek Testing Services Philippines
ASA PERITO MORENO Alex Stewart International Argentina SA - Perito Moreno Romania
CERRO NEGRO Goldcorp - Cerro Negro ALSM ROMANIA ALS Romania
Brazil Russia
PARACATU MINE Kinross Brasil Mineração SA ALSM CHITA ALS Minerals - Chita
SGS LF BELO HOR SGS Geosol Laboratórios Ltda ALSM MOSCOW Stewart Geochemical and Assay Ltd
Bulgaria ALSM NATALKA ALS Minerals - Natalka
CHELOPECH MINE Chelopech Mine Laboratory IRGIREDMET RUSSIA IRGIREDMET JSC
Burkina Faso KUPOL MINE Kupol Mine
ALSM OUAGADOUGOU ALS Burkina SARL LAMS RC LAMS RC JSC KRAS
IAMGOLD BF IAMGOLD Essakane SA PAL JSC ALDAN PAL JSC ALDAN
SEMAFO Semafo Burkina Faso PAL JSC KRAS PAL JSC KRAS
SGS HOUNDE BF SGS Hounde PAL JSC VERNINSKOYE PAL JSC VERINSKOE
SGS OUAGADOUGOU SGS Burkina SA SGS CHITA SGS Chita
WESTAGO BF WESTAGO sarl SGS PAVLIK SGS Pavlik
Canada Saudi Arabia
ACME VAN Bureau Veritas Commodities Canada Ltd - Vancouver ALAMRI JEDDAH Al Amri Laboratory
ACTLABS CAN Activation Laboratories Ltd (Canada) ALSM JEDDAH ALS Minerals - Arabia
ACTLABS TB Activation Laboratories Ltd - Thunder Bay MAADEN SAUDI Maaden Gold and Base Metals Co
AGAT ONTARIO AGAT Laboratories - Mississauga MBCC JABAL SAYID MBCC Jabal Sayid Mine
AGAT TB AGAT Laboratories - Thunder Bay Senegal
ALSM QUEBEC ALS Minerals (Val d'Or) SGS MAKO SGS Mako
ALSM VAN ALS Minerals - Vancouver SGS SABODALA SGS Sabodala
BV ONTARIO Maxxam Analytics International Corporation South Africa
BVCC TIMM Bureau Veritas Commodities Canada Ltd - Timmins ALSM JOBURG ALS Minerals - Johannesburg
ELEONORE Goldcorp - Eleonore SCI SER Scientific Services Pty Ltd
HEMLO MINE Williams Operating Corporation SGS BARBERTON Performance Laboratories Barberton
KIRKLAND ONTARIO MAC Kirkland Lake Gold SGS RANDFONTEIN Performance Laboratories (PLR)
MCEWEN BLACK FOX McEwen Mining Black Fox SGS VAAL RIVER SGS Vaal River
MSALABS MSALABS SIBANYE BEATRIX Sibanyegold Beatrix Division
MUSSELWHITE Musselwhite Mine Laboratory SIBANYE CHARL Sibanyegold Analytical Laboratory Driefontein
NEWCREST RED CHRIS Newcrest Red Chris JV Sudan
NMAL TIMMINS Northern Mining Analytical Laboratory DAL SUDAN DAL Mining Services
SGS COCHRANE SGS Cochrane Turkey
SGS LAKEFIELD SGS Lakefield (Ontario) ACME KAYSERI Acme Analytical Laboratories Ltd - Kayseri Turkey
SGS VANCOUVER SGS Vancouver ACME TURKEY Acme Analytical Laboratories Ltd - Ankara Turkey
TSL SASKATCHEWAN TSL Laboratories ALSM TURKEY ALS Minerals - Turkey
Chile ANAGOLD TURK Anagold Madencilik San Ve Tic.A.S.
ALSM SANTIAGO ALS Minerals - Santiago CAYELI BAKIR TURKEY Cayeli Bakir Isletmeleri A.S.
BV COQUIMBO BV Mineral Chemical Analysis - Geoanalitica Coquimbo ENCON ANKARA Encon Laboratuvari A.S.
China ESAN ECZACIBASI Esan Eczacibasi Endustriyel Hammaddeler San. Ve Tic. A.S.
ALSM CHINA ALS Minerals - Guangzhou (China) ESAN ECZACIBASI IST Esan Eczacibasi Endustriyel Hammaddeler San. Ve Tic. A.S. - Istanbul
ZIJIN TESTING CHINA Fujian Zijin Mining and Metallurgy Testing Technology Co., Ltd KOZAGOLD HIMMETDEDE Koza Gold Mine Himmetdede Laboratory
Cote d'Ivoire KOZAGOLD KAYMAZ Koza Gold Mine Kaymaz Laboratory
BV COTE Bureau Veritas Mineral Laboratories Cote d'Ivoire KOZAGOLD MASTRA Koza Gold Mine Mastra Laboratory
SGS AGBAOU CI SGS Côte d'Ivoire S.A. Agbaou KOZAGOLD TURKEY Koza Gold Mine Laboratory
SGS ITY CI SGS Côte d'Ivoire S.A. ITY MTA TURKEY MTA Genel Mudurlugu
Democratic Republic of Congo ONSA TURKEY Onsa Refinery
SGS LUBUMBASHI SGS Lubumbashi SGS TURKEY SGS Turkey
Dominican Republic TUMAD IVRINDI Tumad Ivrindi, Balıkesir Mine Site
PUEBLO VIEJO Pueblo Viejo Laboratorio TUMAD TURKEY Tumad Turkey
Eritrea United States of America
SGS BISHA SGS Bisha AALLABS American Assay Laboratories
Finland ACZ COLORADO ACZ Laboratories Inc
LABTIUM FIN Eurofins Labtium Oy ALSE HOUSTON ALS Houston
Ghana ALSM RENO ALS Minerals - Reno
ALSM GHANA ALS Minerals - Ghana BALD MOUNT Bald Mountain Mine Assay Lab
ITS GHANA Intertek Minerals Ltd (Ghana) CORTEZ MINE Cortez JV Mine Assay Lab
NEW AHAFO GHANA Ahafo Mine Site Laboratory FLORIN RENO Florin Analytical Services
PERSEUS GHANA Perseus Mining Limited FLSMIDTH USA FLSmidth Analytical Lab
SGS ITS AKYEM SGS ITS AKYEM FORT KNOX Fort Knox Assay Lab
SGS SOLUSERV SGS Soluserv Obuasi GOLDSTRIKE Barrick Analytical Laboratory
SGS TARKWA SGS Laboratories (Tarkwa) INSPECTORATE NEV Inspectorate America Corporation - Sparks
Guinea MCCLELLAND NEV McClelland Laboratories, Inc.
CASSIDY GOLD GUINEE Cassidy Gold Guinee SA NEW MET SER Newmont Metallurgical Services
Guyana NGM GC Newmont Mining Corporation - Carlin Assay Lab
MSA LABS GUYANA MSA Labs Guyana Inc. NGM LONE Newmont - Lone Tree Mine
India NGM TWIN CM Newmont - Twin Creek Mine
SHIVA INDIA Shiva Analyticals (India) Ltd PACE ANALYTICAL WY Inter-Mountain Laboratories
Indonesia ROUND MOUNT MINE Round Mountain Gold Assay Lab
GEOSERVICES IND PT Geoservices Ltd RTKC UTAH Rio Tinto Kennecott Copper
ITS GOSOWONG Gosowong Gold Project Lab SKYLINE ARIZONA DAY Skyline Assayers & Laboratories - Arizona - Day Shift
ITS INDO Intertek Testing Services, Jakarta SVL ANALYTICAL SVL Analytical, Inc.
ITS MARTABE Intertek Services - Martabe TURQ RIDGE MINE Turquoise Ridge JV Mine Assay Lab
ITS UTAMA Intertek Utama Services Manado Zambia
MIRAH KBK INDO KBK Mirah Site Laboratory AHK KITWE Alfred H Knight Zambia Ltd
MURO IMK INDO PT Indo Muro Kencana ALSM KANSANSHI ALS Minerals - Kansanshi
PT SUCOFINDO TIMIKA Sucofindo Timika Laboratory KANSANSHI ZAMBIA Kansanshi Mining PLC
WAY LINGGO PT Geoservices Ltd - Way Linggo LUMWANA MINE Lumwana Mine Site Lab
WETAR PT Geoservices Ltd - Wetar SGS KALULUSHI SGS Inspection Services Zambia
Iran Zimbabwe
NOVIN SHIMYAR Khadamate Shimyayee Novin Shimyar Co. ANTECH Antech Laboratories
ZARAZMA TEHRAN Zarazma Minerals Studies Company BINDURA ZIM Bindura Nickel Corporation Limited
Ireland FREDA ZIM Freda Rebecca Gold Mine
ALSM IRELAND Omac Laboratories - Ireland PERF ZIMBABWE Performance Laboratories Zimbabwe
BOLIDEN TARA Boliden Tara Mines
Kazakhstan Commercial Laboratory Laboratory that reported some results after the database was closed.
ALSM AKBAKAY ALS Minerals - Akbakay Minesite Laboratory
ALSM KAZAKHSTAN ALS Minerals - Kazakhstan Government Laboratory
KAZGIDROMED KAZ KazGidroMed LLC
International Laboratory Round Robin Geostats Pty Ltd
April 2020 Survey Report
April 2020 Report Page i
REPORT ON LABORATORY SURVEY – April 2020
• 5 low level gold samples
• 6 gold and silver on carbon samples
• 10 geochemical base metal samples
A round robin to measure the accuracy of gold, silver, sulphur and base metal analyses from 207 laboratories
was conducted during April 2020. The results of this survey are a measure of the ability of a laboratory to
accurately analyse a pre-prepared pulp.
The ability of a laboratory to crush, split and prepare the sample without contamination is not measured by this
survey. Knowledge of sampling machinery and the ability to design efficient flow systems with in-built
homogeneity checks is required in order to develop confidence in the sample preparation.
The samples submitted to the laboratories consisted of:
• 10 gold samples
The base metal samples were analysed for copper, lead, zinc, nickel, arsenic, silver and cobalt. The method of
analysis for base metal samples was left to the discretion of the laboratory manager. However, the report
groups them into Total (typically 4 acid digest or fusion) and Partial (all others, mainly aqua regia) methods.
Maxxam Ontario performed Neutron Activation Analysis and these have been included in the Total digest
group. Methods are listed in the results page for the respective analyte.
• 6 ore-grade base metal samples
GOLD SAMPLES
GOLD AND SILVER ON CARBON SAMPLES
Three lots of gold samples were submitted to the laboratories, one lot for fire assay, one for aqua regia digest
(or similar) and one for low-level gold. Maxxam Canada performed Neutron Activation Analysis on all samples,
reporting a gold + 33 element analysis which has been included at the end of this report. Maxxam Ontario can
be contacted through Christine MacDermid at [email protected]
Six gold and silver on carbon samples were included in this survey, both loaded and barren. The method of
analysis for these samples was left up to the individual laboratories.
• 10 sulphur and carbon samples
Companies operating more than one laboratory have received extra filler samples, which are not used in the
calculations. The Geostats numbering system makes it extremely difficult for any comparison of results from
one laboratory to the next. This provides a level playing field for all laboratories, whether they are sole
operators or members of a large laboratory group.
We use a double entry system to build an accurate database. Two individuals enter all the data and when
complete these two files are cross-checked and the source data is consulted to rectify any errors. The mean
values used for calculations in this study are checked visually by preparing histograms. Outliers are removed
and the remaining population distributions are tested for normality. All outliers are checked back to the original
assay report for a third and final time.
GEOCHEM BASE METAL SAMPLES
International Laboratory Round Robin Geostats Pty Ltd
April 2020 Survey Report
April 2020 Report Page ii
2. Bar chart for each element showing the sum of absolute standardised values divided by the count of
absolute standardised values.
ORE GRADE BASE METAL SAMPLES
f. maximum
g. error (95% Confidence Interval)
4. Run outlier macro to find obvious outlier values.
5. Generate 'Z' intervals for remaining data (from calculated mean).
6. Check that median and mean are similar to verify a normal distribution.
7. Standardise remaining values i.e. subtract the mean and divide by the standard deviation.
h. percentage error of mean (error as a percentage of the calculated mean).
3. Produce summary statistics and assay sheet.
e. minimum
2. Produce basic statistics on results, including:
a. count
Six ore-grade and/or concentrate samples are included in the survey. These are assayed primarily for copper,
lead, zinc, nickel, silver and sulphur. Other elements are reported but not in sufficient numbers for inclusion in
the report. These high-grade materials are analysed at the chemist’s discretion but almost always using ore-
grade techniques. Some use classical analyses while others use XRF or other methods. However, some of
these products have, for example, high lead but low copper and the method for copper analysis may be
inappropriate for low levels. Owing to this characteristic, only higher grade analyses are plotted in the related
charts.
1. A table showing values as reported from the laboratories. These are presented in columns according to their
respective sample identifiers, with each result's standardised Z value also displayed. Outliers are highlighted
and assigned a Z value of 3.00 or -3.00. General statistics are listed at the top of each table.
1. Double entry of all data and validation by cross-checking. Confirm any anomalous values.
b. mean
c. median
The results of the analyses are presented in three forms:
3. Bar chart for the mean of standardised values.
d. standard deviation
SULPHUR SAMPLES
RESULTS
All of the certified reference materials used in this survey are available for purchase.
Ten samples for sulphur and carbon analysis were prepared for the survey. These ten new samples are a good
mix of values with sulphur values up to 20.3% and carbon values up to 3.8%.
EXAMINATION OF RESULTS - METHODOLOGY
International Laboratory Round Robin Geostats Pty Ltd
April 2020 Survey Report
April 2020 Report Page iii
10. Add absolute values from each laboratory in 'standardised values' calculations.
11. Divide result by count of results to calculate average absolute standard value for laboratory performance
on each element.
INTERPRETATION OF RESULTS
These charts show the mean of standardised values with negative values included. A direction of error or bias
can be interpreted from laboratories showing high values, negative or positive.
The 'Mean of Standardised Values' charts (blue in reports) indicate any bias shown by laboratories on a
particular element, but do not show any general error which might be plus and minus the mean. The 'Mean of
Absolute Standardised Values' charts (red in reports) indicate the general error but no bias.
12. Produce ‘Mean of Absolute Standardised Values’ Bar Charts.
CHARTS
SUMMARY STATISTICS AND ASSAY TABLES
MEAN OF STANDARDISED VALUES (BLUE CHARTS)
These tables are self-explanatory. The row titled 'error' refers to the margin of error expected at 95%
confidence. That is, the standard normal probability or 'Z' statistic representing 95% (1.96) is multiplied by the
standard deviation and the result is divided by the square root of the population. We can be 95% confident that
the true mean lies between mean minus error and mean plus error. The row titled '% error in mean' is simply
this margin of error expressed as a percentage of the calculated mean. Outliers are highlighted and not used
for calculations at the top of the tables.
STANDARDISED VALUES
These numbers are generated using the following formula. Reported value minus the mean, result of this
divided by the standard deviation. This creates a new distribution with mean '0' and standard deviation '1'.
Positive and negative numbers result from this calculation depending on whether the reported value is above
or below the mean. Laboratories reporting outliers are manually assigned 3.00 or -3.00 as these results have
been removed from automatic calculation. The higher the absolute number reported, the further the reported
assay is from the calculated mean.
MEAN OF ABSOLUTE STANDARDISED VALUES (RED CHARTS)
9. Produce 'Mean of Standardised Values' Bar Charts.
The bar representing each laboratory is the mean of the sum of the absolute standardised values reported on
all assays of the element in question. That is, the absolute sum of the rows in the Standardised Values Table
divided by the number of assays. These charts give a visual representation to the general error shown by the
particular laboratories. These charts do not show bias.
8. Add results from each laboratory in 'standardised values' calculations (positive and negative) and divide by
count.
International Laboratory Round Robin Geostats Pty Ltd
April 2020 Survey Report
1A 1 Acid Digest AAS
2A 2 Acid Digest DIBK DIBK Extraction
3A 3 Acid Digest ES ICP - Emission Spectroscopy
4A 4 Acid Digest GRAV Gravimetric
5A 5 Acid Digest ICP Inductively Coupled Plasma - Unspecified
AD Acid Digest IR Infrared
AR Aqua Regia MS ICP - Mass Spectroscopy
CSA Carbon and Sulphur Analyser XRF
FA Fire Assay
FUS Fusion
GF Graphite Furnace
IH In House Method
LW Leachwell
MICR Microwave
NAA Neutron Activation Analysis
PP Pressed Powder
PR Pre-Roast
TITR Titration
April 2020 Report Page iv
The ore grade base metal material GBM914-14 was found to perform poorly, particularly for lead. The results
on this material do not contribute towards the error charts.
LEGEND FOR METHODS & READINGS
ADDITIONAL COMMENTS
Atomic Absorption Spectroscopy
X-Ray Fluorescence
METHODS READINGS
Bias is indicated in negative/positive column charts (blue charts).
The column charts show indications of error or direction of error - check the real data in the tables before
coming to any decision as to the significance of this error. Also pay attention to the grade of the standard
materials with regard to the laboratory level of detection. Some laboratories may report outliers due to the
limitations of their methodology.
BRIEFLY
General error is indicated in absolute column charts (red charts).
CONTENTS
RESULTS OF ANALYSES PRESENTED AS TABLES AND PLOTS
GOLD SAMPLES Pages
Fire Assay Gold 1 & 2
Aqua Regia Digest Gold 3 & 4
Low Grade Gold 5 & 6
Au & Ag IN CARBON SAMPLES
Gold On Carbon 7 & 8
Silver On Carbon 9 & 10
BASE METAL SAMPLES
Silver (Total Digest) 11 & 12
Silver (Partial Digest) 13 & 14
Copper (Total Digest) 15 & 16
Copper (Partial Digest) 17 & 18
Lead (Total Digest) 19 & 20
Lead (Partial Digest) 21 & 22
Zinc (Total Digest) 23 & 24
Zinc (Partial Digest) 25 & 26
Nickel (Total Digest) 27 & 28
Nickel (Partial Digest) 29 & 30
Arsenic (Total Digest) 31 & 32
Arsenic (Partial Digest) 33 & 34
Cobalt (Total Digest) 35 & 36
Cobalt (Partial Digest) 37 & 38
ORE GRADE BASE METAL SAMPLES
Copper 39 & 40
Lead 41 & 42
Zinc 43 & 44
Nickel 45 & 46
Silver 47 & 48
Sulphur 49 & 50
SULPHUR SAMPLES
Sulphur 51 & 52
Carbon 53 & 54
OTHER
MAXXAM NAA Results 55
Laboratory Summary Report 56
FA50 Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference G320-1 G320-2 G320-3 G320-4 G320-5 G320-6 G320-7 G320-8 G320-9 G320-10
MEAN (ppm) 78.81 1.23 1.03 0.17 1.15 2.26 5.33 12.36 1.99 0.65
STDEV (ppm) 3.96 0.05 0.06 0.01 0.05 0.10 0.16 0.36 0.08 0.03
95% CI (ppm) 0.64 0.01 0.01 0.00 0.01 0.02 0.03 0.06 0.01 0.00
95% CI (%) 0.81% 0.69% 0.92% 1.46% 0.64% 0.70% 0.47% 0.46% 0.59% 0.73% 50 gram Fire Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 67.34 1.08 0.85 0.13 1.01 1.98 4.87 11.39 1.77 0.57
MEDIAN (ppm) 79.04 1.24 1.03 0.16 1.15 2.25 5.34 12.40 1.99 0.65
MAX (ppm) 88.80 1.39 1.18 0.20 1.28 2.55 5.70 13.32 2.19 0.74
IQR (ppm) 4.58 0.07 0.06 0.02 0.05 0.13 0.20 0.49 0.08 0.03
COUNT 148 159 165 140 163 169 154 157 162 162
Standard Reference G320-1 G320-2 G320-3 G320-4 G320-5 G320-6 G320-7 G320-8 G320-9 G320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 85.64 1.72 1.21 -0.46 0.99 -0.64 0.17 -0.08 1.15 0.06 2.22 -0.37 5.36 0.20 12.85 1.36 2.00 0.12 0.68 0.74 FA ES
COMLAB 75.10 -0.94 1.25 0.31 1.05 0.33 0.16 -0.63 1.14 -0.15 2.10 -1.51 5.19 -0.87 12.60 0.66 1.93 -0.80 0.64 -0.49 FA AAS
COMLAB 76.67 -0.54 1.20 -0.56 1.05 0.27 0.15 -0.83 1.16 0.17 2.27 0.12 5.47 0.89 12.99 1.74 1.91 -1.06 0.65 -0.13 FA AAS,GRAV
COMLAB 79.40 0.15 1.24 0.13 0.92 -1.77 0.15 -1.24 1.15 0.06 2.29 0.30 5.21 -0.74 12.70 0.94 2.07 1.04 0.63 -0.72 FA AAS,GRAV
COMLAB 80.50 0.43 1.25 0.31 1.04 0.17 0.16 -0.42 1.14 -0.15 2.28 0.21 5.33 0.01 13.00 1.77 1.99 -0.01 0.64 -0.46 FA AAS
COMLAB 80.70 0.48 1.22 -0.24 1.01 -0.32 0.20 2.32 1.15 0.06 2.22 -0.37 5.47 0.89 12.50 0.38 2.22 3.00 0.70 1.48 FA AAS
COMLAB 99.80 3.00 1.14 -1.72 1.00 -0.48 0.15 -1.10 1.11 -0.77 2.24 -0.18 5.58 1.58 13.32 2.66 2.14 1.96 0.63 -0.78 FA AAS
COMLAB 77.30 -0.38 1.20 -0.61 1.05 0.33 0.16 -0.42 1.16 0.27 2.40 1.35 5.49 1.01 12.61 0.69 2.05 0.78 0.66 0.19 FA AAS
COMLAB 77.45 -0.34 1.23 -0.06 1.07 0.65 0.15 -1.10 1.11 -0.77 2.24 -0.18 5.37 0.26 12.03 -0.92 2.00 0.12 0.65 -0.13 FA AAS
COMLAB 73.10 -1.44 1.16 -1.35 0.97 -0.96 0.12 -3.00 1.05 -2.03 2.07 -1.80 5.23 -0.62 12.05 -0.87 1.83 -2.12 0.58 -2.40 FA AAS
COMLAB 85.90 1.79 1.27 0.68 0.98 -0.80 0.16 -0.42 1.14 -0.15 2.33 0.68 5.60 1.70 12.55 0.52 2.07 1.04 0.65 -0.13 FA AAS
COMLAB 80.20 0.35 1.26 0.40 0.99 -0.67 0.16 -0.35 1.14 -0.25 2.25 -0.08 5.57 1.51 12.45 0.24 2.01 0.25 0.65 -0.26 FA AAS
COMLAB 71.25 -1.91 1.26 0.49 0.95 -1.28 0.17 0.27 1.11 -0.77 2.22 -0.37 5.17 -0.99 12.13 -0.64 1.96 -0.41 0.64 -0.46 FA AAS
COMLAB 78.80 0.00 1.24 0.13 1.04 0.17 0.18 0.95 1.15 0.06 2.23 -0.27 5.41 0.51 11.95 -1.14 2.04 0.65 0.67 0.51 FA AAS
COMLAB 76.90 -0.48 1.23 -0.06 1.00 -0.48 0.16 -0.42 1.14 -0.15 2.25 -0.08 5.25 -0.49 12.45 0.24 1.97 -0.28 0.63 -0.78 FA AAS
COMLAB 26.70 -3.00 1.22 -0.24 1.03 0.01 0.17 0.27 1.17 0.48 2.33 0.68 5.36 0.20 12.15 -0.59 1.95 -0.54 0.67 0.51 FA AAS
COMLAB 83.00 1.06 1.29 1.05 1.06 0.49 0.17 0.27 1.17 0.48 2.33 0.68 5.38 0.32 12.40 0.11 2.06 0.91 0.71 1.81 FA ICP
COMLAB 75.30 -0.89 1.22 -0.24 0.97 -0.96 0.16 -0.42 1.12 -0.57 2.31 0.49 5.22 -0.68 12.00 -1.01 1.96 -0.41 0.63 -0.78 FA AAS
COMLAB 73.20 -1.42 1.32 1.60 1.07 0.65 0.18 0.95 1.18 0.69 2.37 1.07 5.35 0.14 12.25 -0.31 1.96 -0.41 0.67 0.51 FA AAS
COMLAB 82.30 0.88 1.20 -0.61 0.97 -0.96 0.16 -0.42 1.14 -0.15 2.32 0.59 5.44 0.70 12.10 -0.73 2.07 1.04 0.66 0.19 FA AAS
COMLAB 76.10 -0.68 1.32 1.60 1.13 1.62 0.22 3.00 1.31 3.00 2.32 0.59 5.23 -0.62 12.25 -0.31 2.14 1.96 0.74 2.78 FA AAS,GRAV
COMLAB 70.30 -2.15 1.22 -0.24 1.03 0.01 0.15 -1.10 1.12 -0.57 2.37 1.07 5.05 -1.74 12.00 -1.01 1.94 -0.67 0.68 0.84 FA ES
COMLAB 74.80 -1.01 1.22 -0.24 1.02 -0.15 0.16 -0.42 1.14 -0.15 2.28 0.21 5.39 0.39 12.40 0.11 1.94 -0.67 0.62 -1.11 FA AAS
COMLAB 78.69 -0.03 1.27 0.68 1.06 0.49 0.16 -0.42 1.10 -0.98 2.44 1.73 5.32 -0.05 12.31 -0.14 2.01 0.25 0.67 0.51 FA AAS
COMLAB 78.80 0.00 1.20 -0.61 0.91 -1.93 0.17 0.27 1.10 -0.98 2.18 -0.75 5.45 0.76 12.40 0.11 2.01 0.25 0.66 0.19 FA AAS
COMLAB 80.70 0.48 1.18 -0.98 1.01 -0.32 0.16 -0.42 1.08 -1.40 2.30 0.40 5.45 0.76 12.05 -0.87 2.06 0.91 0.66 0.19 FA AAS
COMLAB 86.10 1.84 1.21 -0.43 nr nr 0.17 0.27 nr nr 2.33 0.68 5.14 -1.18 11.65 -1.98 1.97 -0.28 0.66 0.19 FA AAS
COMLAB 82.70 0.98 1.23 -0.06 1.04 0.17 0.18 0.95 1.14 -0.15 2.22 -0.37 5.38 0.32 12.20 -0.45 2.03 0.51 0.64 -0.46 FA AAS,GRAV
COMLAB 78.50 -0.08 1.21 -0.43 1.04 0.17 nr nr 1.19 0.90 2.19 -0.65 5.49 1.01 11.90 -1.28 2.09 1.30 0.64 -0.46 FA AAS
COMLAB 79.20 0.10 1.15 -1.53 1.01 -0.32 0.16 -0.42 1.15 0.06 2.17 -0.84 5.31 -0.11 11.95 -1.14 2.01 0.25 0.65 -0.13 FA AAS
COMLAB 77.40 -0.36 1.23 -0.06 1.10 1.14 0.19 1.64 1.17 0.48 2.32 0.59 5.17 -0.99 12.25 -0.31 1.98 -0.14 0.70 1.48 FA GRAV
COMLAB 71.20 -1.92 1.25 0.31 1.14 1.70 0.16 -0.69 1.17 0.48 2.38 1.16 5.41 0.51 12.05 -0.87 2.02 0.38 0.65 -0.07 FA AAS,GRAV
COMLAB 81.30 0.63 1.25 0.31 1.05 0.33 0.15 -1.10 1.16 0.27 2.35 0.87 5.51 1.14 12.40 0.11 1.98 -0.14 0.67 0.51 FA AAS
COMLAB 76.60 -0.56 nr nr 1.02 -0.15 0.16 -0.42 1.03 -2.45 2.23 -0.27 4.96 -2.31 12.10 -0.73 1.95 -0.54 0.56 -3.00 FA AAS
COMLAB 81.20 0.60 1.25 0.31 1.07 0.65 0.18 0.95 1.15 0.06 2.23 -0.27 5.31 -0.11 11.65 -1.98 2.04 0.65 0.61 -1.43 FA AAS
COMLAB 81.41 0.66 1.28 0.86 1.02 -0.15 0.12 -3.00 1.14 -0.15 2.46 1.92 5.34 0.07 12.51 0.41 2.05 0.78 0.63 -0.78 FA ICP
COMLAB 87.02 2.07 1.30 1.23 1.10 1.14 0.19 1.64 1.18 0.69 2.33 0.68 5.07 -1.62 11.66 -1.95 2.04 0.65 0.68 0.84 FA AAS
COMLAB 81.00 0.55 1.10 -2.45 0.96 -1.12 0.17 0.27 1.09 -1.19 2.12 -1.32 5.05 -1.74 12.40 0.11 1.95 -0.54 0.56 -3.00 FA
COMLAB 84.53 1.44 1.24 0.13 1.05 0.33 0.17 0.27 1.18 0.69 2.52 2.50 5.59 1.64 12.44 0.22 2.03 0.51 0.66 0.19 FA AAS,GRAV
COMLAB 74.90 -0.99 1.14 -1.74 1.00 -0.56 0.17 0.54 1.14 -0.23 2.23 -0.30 5.29 -0.23 12.20 -0.45 1.96 -0.47 0.65 -0.07 FA ES,GRAV
COMLAB 81.90 0.78 1.27 0.68 1.08 0.81 0.18 0.95 1.18 0.69 2.37 1.07 5.31 -0.11 12.60 0.66 2.00 0.12 0.69 1.16 FA AAS
COMLAB >5.00 ald 1.21 -0.43 1.00 -0.48 0.17 0.27 1.19 0.90 2.30 0.40 >5.00 ald >5.00 ald 2.00 0.12 0.68 0.84 FA AAS
COMLAB 77.72 -0.28 1.29 1.05 1.02 -0.15 0.18 0.95 1.10 -0.98 2.28 0.21 5.39 0.39 12.63 0.74 1.87 -1.59 0.67 0.51 FA AAS
COMLAB 78.90 0.02 1.13 -1.99 1.02 -0.22 0.16 -0.76 1.15 0.08 2.23 -0.24 5.43 0.62 11.80 -1.56 1.96 -0.41 0.67 0.42 FA AAS,GRAV
COMLAB 55.24 -3.00 1.36 2.30 1.07 0.59 0.20 1.98 1.19 0.90 2.59 3.00 6.46 3.00 12.76 1.11 2.10 1.37 0.67 0.61 NAA
COMLAB 82.10 0.83 1.25 0.31 1.01 -0.32 0.16 -0.28 1.13 -0.36 2.21 -0.46 5.43 0.64 12.20 -0.45 1.93 -0.80 0.64 -0.56 FA ES
COMLAB 86.60 1.97 1.25 0.35 1.05 0.35 0.17 0.06 1.17 0.52 2.32 0.56 5.23 -0.60 12.80 1.22 2.04 0.58 0.66 0.06 FA AAS,GRAV
COMLAB >10.00 ald 0.96 -3.00 0.59 -3.00 0.15 -1.24 1.15 0.15 2.18 -0.80 5.54 1.33 >10.00 ald 1.95 -0.53 0.65 -0.10 FA AAS,GRAV
COMLAB 74.20 -1.16 1.25 0.37 1.03 0.01 0.15 -0.97 1.15 0.06 2.28 0.18 5.41 0.51 12.30 -0.17 2.01 0.22 0.65 -0.13 FA AAS,GRAV
COMLAB 78.40 -0.10 1.24 0.13 1.10 1.14 0.16 -0.42 1.17 0.48 2.22 -0.37 5.33 0.01 12.20 -0.45 2.08 1.17 0.66 0.19 FA AAS
COMLAB 80.50 0.43 1.25 0.31 1.08 0.81 0.18 0.95 1.19 0.90 2.26 0.02 5.35 0.14 12.60 0.66 2.04 0.65 0.68 0.84 FA AAS
COMLAB nr nr 1.27 0.68 1.00 -0.48 0.18 0.95 1.18 0.69 2.26 0.02 5.44 0.70 12.08 -0.78 2.04 0.65 0.66 0.19 FA AAS
COMLAB 79.80 0.25 0.65 -3.00 0.50 -3.00 0.40 3.00 0.65 -3.00 1.60 -3.00 6.20 3.00 10.70 -3.00 1.50 -3.00 0.55 -3.00 FA
COMLAB 0.71 -3.00 5.12 3.00 0.06 -3.00 1.67 3.00 0.21 -3.00 2.15 -1.03 0.09 -3.00 0.34 -3.00 0.12 -3.00 4.36 3.00 AR MS
COMLAB 35.82 -3.00 1.19 -0.80 0.70 -3.00 0.16 -0.42 1.08 -1.40 2.47 2.02 5.28 -0.30 12.25 -0.31 2.14 1.96 0.68 0.84 FA AAS
COMLAB 82.43 0.91 1.08 -2.82 0.92 -1.77 bld bld 1.15 0.06 2.32 0.59 5.23 -0.62 12.64 0.77 1.98 -0.14 0.64 -0.46 FA GRAV
COMLAB 85.27 1.63 1.27 0.68 1.08 0.81 0.22 3.00 1.20 1.11 2.22 -0.37 5.31 -0.11 12.64 0.77 1.98 -0.14 0.70 1.48 FA AAS,GRAV
COMLAB 65.55 -3.00 1.24 0.13 1.09 0.98 0.16 -0.42 1.12 -0.57 2.13 -1.23 5.15 -1.12 11.75 -1.70 1.96 -0.41 0.63 -0.78 FA AAS
COMLAB 79.77 0.24 1.20 -0.61 1.03 0.01 0.14 -1.79 1.15 0.06 2.37 1.07 5.29 -0.24 12.93 1.58 1.97 -0.28 0.66 0.19 FA AAS
COMLAB 76.94 -0.47 1.26 0.40 1.05 0.38 0.15 -0.83 1.13 -0.36 2.21 -0.49 5.40 0.46 12.42 0.16 1.99 0.03 0.69 1.26 FA ES
COMLAB 77.74 -0.27 1.30 1.16 1.00 -0.41 0.17 0.06 1.13 -0.46 2.23 -0.28 5.43 0.62 11.85 -1.42 1.92 -0.95 0.58 -2.50 FA ES
COMLAB 85.59 1.71 1.20 -0.61 1.03 0.01 0.19 1.64 1.15 0.06 2.42 1.54 5.04 -1.81 11.98 -1.06 1.95 -0.54 0.65 -0.13 FA AAS
COMLAB >50.00 ald 1.30 1.23 1.06 0.49 0.17 -0.01 1.25 2.15 2.55 2.78 5.49 1.01 12.30 -0.17 2.11 1.57 0.72 2.00 FA AAS
COMLAB 88.80 2.52 1.42 3.00 1.10 1.14 0.25 3.00 1.35 3.00 2.52 2.50 5.89 3.00 13.00 1.77 2.19 2.62 0.74 2.78 FA AAS
COMLAB 82.23 0.86 1.39 2.87 1.10 1.17 0.21 3.00 1.27 2.65 2.33 0.65 5.31 -0.14 11.21 -3.00 2.26 3.00 0.82 3.00 FA AAS
COMLAB 78.80 0.00 1.24 0.13 1.03 0.01 0.14 -1.79 1.15 0.06 2.25 -0.08 5.13 -1.24 12.19 -0.48 2.03 0.51 0.65 -0.13 FA AAS
COMLAB 74.25 -1.15 1.24 0.13 1.06 0.49 0.16 -0.42 1.16 0.27 2.24 -0.18 5.13 -1.24 12.48 0.33 1.96 -0.41 0.67 0.51 FA ES
COMLAB 79.54 0.18 1.27 0.68 1.02 -0.15 0.16 -0.42 1.11 -0.77 2.27 0.11 5.50 1.08 12.05 -0.87 1.95 -0.54 0.63 -0.78 FA ES
COMLAB 80.17 0.34 1.29 1.05 1.17 2.27 0.18 0.95 1.21 1.32 2.25 -0.08 5.57 1.51 13.50 3.00 2.03 0.51 0.68 0.84 FA ES
COMLAB 73.10 -1.44 1.18 -0.98 1.02 -0.15 0.16 -0.42 1.13 -0.36 2.25 -0.08 5.29 -0.24 12.40 0.11 2.01 0.25 0.68 0.84 FA AAS
COMLAB 82.80 1.01 1.28 0.85 1.01 -0.27 0.16 -0.76 1.12 -0.59 2.30 0.41 5.41 0.48 12.43 0.18 2.03 0.55 0.66 0.22 FA AAS
COMLAB 79.38 0.14 1.21 -0.43 0.99 -0.64 0.15 -1.10 1.10 -0.98 2.20 -0.56 5.32 -0.05 12.29 -0.20 2.03 0.51 0.67 0.51 IH
COMLAB 76.35 -0.62 1.27 0.68 1.08 0.81 0.17 0.27 1.15 0.06 2.28 0.21 5.54 1.33 12.68 0.88 2.07 1.04 0.67 0.51 FA AAS,GRAV
COMLAB 78.72 -0.02 1.27 0.68 1.08 0.81 0.16 -0.42 1.17 0.48 2.19 -0.65 5.44 0.70 12.61 0.69 2.01 0.25 0.68 0.84 FA AAS,GRAV
COMLAB 80.79 0.50 1.35 2.15 0.94 -1.45 0.18 0.95 1.25 2.15 2.30 0.40 5.81 3.00 13.07 1.97 2.08 1.17 0.67 0.51 FA AAS
COMLAB 94.20 3.00 1.31 1.42 1.16 2.11 0.23 3.00 1.14 -0.15 2.28 0.21 5.70 2.33 12.70 0.94 1.99 -0.01 0.66 0.19 FA AAS
COMLAB 76.50 -0.58 1.26 0.49 1.12 1.46 <0.20 bld 1.16 0.27 2.20 -0.56 5.30 -0.18 12.30 -0.17 2.00 0.12 0.62 -1.11 FA GRAV
COMLAB >50.00 ald 1.15 -1.53 0.94 -1.45 0.16 -0.42 1.17 0.48 2.22 -0.37 5.40 0.45 12.23 -0.37 1.99 -0.01 0.60 -1.75 FA AAS
COMLAB 64.92 -3.00 1.41 3.00 0.97 -0.96 0.18 0.95 1.16 0.27 2.26 0.02 5.14 -1.18 11.78 -1.62 1.98 -0.14 0.65 -0.13 FA ICP
COMLAB 79.50 0.17 1.22 -0.24 0.97 -0.96 0.17 0.27 1.14 -0.15 2.41 1.45 5.27 -0.37 12.71 0.97 2.01 0.25 0.65 -0.13 FA AAS
COMLAB 62.76 -3.00 1.20 -0.61 0.93 -1.61 0.16 -0.42 1.05 -2.03 2.34 0.78 5.07 -1.62 12.82 1.27 1.77 -2.91 0.64 -0.46 FA GRAV
COMLAB 84.82 1.52 1.24 0.13 1.10 1.14 0.14 -1.79 1.13 -0.36 2.34 0.78 5.48 0.95 12.54 0.49 2.00 0.12 0.66 0.19 FA AAS
COMLAB >10.00 ald 1.24 0.13 1.00 -0.48 0.15 -1.10 1.15 0.06 2.29 0.30 5.24 -0.55 12.11 -0.70 2.01 0.25 0.58 -2.40 FA
COMLAB 80.10 0.32 1.18 -0.98 1.03 0.01 0.15 -1.10 1.13 -0.36 2.42 1.54 5.42 0.57 12.80 1.22 1.99 -0.01 0.63 -0.78 FA AAS
COMLAB 73.85 -1.25 1.18 -0.98 0.92 -1.77 0.15 -1.10 1.12 -0.57 2.26 0.02 5.29 -0.24 12.34 -0.06 1.97 -0.28 0.65 -0.13 FA,PR AAS
COMLAB 79.94 0.28 1.20 -0.61 1.03 0.01 0.15 -1.10 1.13 -0.36 2.47 2.02 5.20 -0.80 12.56 0.55 1.94 -0.67 0.63 -0.78 FA AAS
COMLAB 79.97 0.29 1.25 0.31 1.02 -0.17 0.16 -0.35 1.15 0.06 2.35 0.91 5.25 -0.47 12.85 1.36 1.96 -0.39 0.67 0.55 FA AAS
COMLAB 70.90 -2.00 1.17 -1.16 1.02 -0.15 0.16 -0.42 1.08 -1.40 2.17 -0.84 4.91 -2.62 11.20 -3.00 1.81 -2.38 0.61 -1.43 FA AAS
COMLAB 75.80 -0.76 1.29 1.05 1.07 0.65 nr nr 1.24 1.94 2.37 1.07 5.34 0.07 13.10 2.05 2.12 1.70 0.70 1.48 FA AAS
COMLAB 74.20 -1.16 1.17 -1.16 1.02 -0.15 0.16 -0.42 1.12 -0.57 2.08 -1.70 5.60 1.70 12.60 0.66 1.96 -0.41 0.63 -0.78 FA AAS
COMLAB 78.00 -0.21 1.20 -0.61 0.95 -1.28 0.19 1.64 1.12 -0.57 2.17 -0.84 5.27 -0.37 12.10 -0.73 2.17 2.35 0.66 0.19 FA AAS
COMLAB 73.69 -1.29 1.25 0.31 1.06 0.49 0.16 -0.42 1.16 0.27 2.15 -1.03 5.27 -0.37 12.17 -0.53 1.85 -1.85 0.63 -0.78 FA AAS,GRAV
COMLAB 77.58 -0.31 12.00 3.00 1.03 0.01 0.17 0.27 1.13 -0.36 2.17 -0.84 5.30 -0.18 1.27 -3.00 1.94 -0.67 0.68 0.84 FA AAS
COMLAB 82.00 0.80 1.21 -0.43 1.02 -0.15 0.16 -0.42 1.16 0.27 2.20 -0.56 5.33 0.01 12.80 1.22 2.05 0.78 0.68 0.84 FA AAS
COMLAB 79.05 0.06 1.14 -1.72 0.97 -0.96 0.18 0.95 1.07 -1.61 2.40 1.35 5.04 -1.81 12.78 1.16 2.16 2.22 0.62 -1.11 FA AAS
COMLAB 79.20 0.10 1.22 -0.22 0.91 -1.86 0.15 -1.45 1.08 -1.40 2.16 -0.92 5.25 -0.49 11.70 -1.84 1.92 -0.88 0.62 -1.07 FA AAS
COMLAB 78.07 -0.19 1.03 -3.00 0.97 -0.96 0.18 0.95 1.01 -2.87 2.17 -0.84 5.38 0.32 12.95 1.63 1.86 -1.72 0.62 -1.11 FA AAS
COMLAB 80.42 0.41 1.13 -1.90 0.97 -0.96 0.15 -1.10 1.11 -0.77 2.11 -1.42 5.34 0.07 12.20 -0.45 2.01 0.25 0.63 -0.78 FA ES
COMLAB 71.10 -1.95 1.19 -0.80 1.00 -0.48 0.16 -0.42 1.09 -1.19 2.08 -1.70 5.15 -1.12 12.10 -0.73 1.89 -1.33 0.65 -0.13 FA AAS
COMLAB 83.84 1.27 1.33 1.79 1.16 2.11 0.18 0.95 1.24 1.94 2.32 0.59 5.48 0.95 12.53 0.47 2.03 0.51 0.71 1.81 FA AAS
COMLAB 77.90 -0.23 1.13 -1.83 0.77 -3.00 0.15 -1.04 1.09 -1.23 2.12 -1.32 4.76 -3.00 11.80 -1.56 1.86 -1.72 0.62 -0.98 FA AAS,GRAV
COMLAB 75.60 -0.81 1.22 -0.24 1.03 0.01 0.16 -0.35 1.15 0.06 2.17 -0.84 5.34 0.07 12.87 1.41 1.95 -0.54 0.66 0.32 FA AAS
COMLAB 48.23 -3.00 1.30 1.23 1.03 0.01 0.24 3.00 1.13 -0.36 2.22 -0.37 5.26 -0.43 12.48 0.33 1.97 -0.28 0.62 -1.11 FA AAS
COMLAB 78.86 0.01 1.24 0.16 1.02 -0.09 0.17 0.20 1.16 0.19 2.24 -0.16 5.31 -0.11 11.49 -2.42 2.11 1.59 0.67 0.42 FA AAS,GRAV
MINELAB 77.50 -0.33 1.26 0.49 0.99 -0.64 0.16 -0.42 1.18 0.69 2.32 0.59 5.56 1.45 12.50 0.38 2.11 1.57 0.64 -0.46 FA AAS
MINELAB 81.86 0.77 1.27 0.68 1.01 -0.32 0.18 0.95 1.15 0.06 2.20 -0.56 5.14 -1.18 12.51 0.41 1.95 -0.54 0.67 0.51 FA AAS,GRAV
MINELAB 78.10 -0.18 1.28 0.86 1.09 0.98 0.20 2.32 1.22 1.53 2.38 1.16 5.70 2.33 12.40 0.11 2.00 0.12 0.68 0.84 FA AAS
MINELAB 60.50 -3.00 1.20 -0.61 1.06 0.49 0.17 0.27 1.11 -0.77 2.34 0.78 4.01 -3.00 11.05 -3.00 1.98 -0.14 0.66 0.19 FA AAS
MINELAB 83.70 1.23 1.25 0.31 1.05 0.33 0.18 0.95 1.16 0.27 2.22 -0.37 5.24 -0.55 12.30 -0.17 2.01 0.25 0.66 0.19 FA AAS
MINELAB 80.42 0.41 1.23 -0.06 1.03 0.01 0.20 2.32 1.16 0.27 2.30 0.40 5.37 0.26 12.51 0.41 2.03 0.51 0.71 1.81 FA AAS
MINELAB 79.81 0.25 1.28 0.86 1.08 0.81 0.12 -3.00 1.18 0.69 2.25 -0.08 5.27 -0.37 12.26 -0.28 2.03 0.51 0.66 0.19 FA GRAV
MINELAB 77.20 -0.41 1.29 1.05 1.03 0.01 0.25 3.00 1.15 0.06 2.31 0.49 5.23 -0.62 12.30 -0.17 2.02 0.38 0.69 1.16 FA GRAV
MINELAB 79.39 0.15 1.22 -0.24 0.91 -1.93 0.14 -1.79 1.13 -0.36 2.17 -0.84 5.50 1.08 12.65 0.80 2.10 1.43 0.65 -0.13 FA AAS
MINELAB 73.81 -1.26 1.18 -1.02 0.97 -0.98 0.15 -1.40 1.08 -1.40 2.20 -0.60 5.19 -0.86 11.11 -3.00 1.85 -1.83 0.63 -0.92 FA AAS
MINELAB 78.29 -0.13 1.31 1.42 1.10 1.14 0.22 3.00 1.20 1.11 2.35 0.87 5.11 -1.37 12.87 1.41 2.03 0.51 0.69 1.16 FA AAS
MINELAB 77.55 -0.32 1.30 1.29 1.17 2.20 0.48 3.00 1.30 3.00 2.54 2.66 5.42 0.56 12.41 0.14 2.13 1.78 0.62 -1.20 FA GRAV
MINELAB 79.59 0.20 1.24 0.13 0.99 -0.64 0.16 -0.42 1.10 -0.98 2.27 0.11 5.36 0.20 12.58 0.61 1.96 -0.41 0.64 -0.46 FA AAS
MINELAB 78.83 0.00 1.23 -0.06 0.90 -2.09 0.16 -0.42 1.14 -0.15 2.24 -0.18 5.32 -0.05 12.23 -0.37 1.97 -0.28 0.64 -0.46 FA AAS,GRAV
MINELAB 76.49 -0.59 1.23 -0.06 1.13 1.62 0.27 3.00 1.17 0.48 2.30 0.40 5.42 0.57 12.24 -0.34 2.06 0.91 0.75 3.00 FA GRAV
MINELAB 82.44 0.92 1.22 -0.24 1.05 0.33 0.15 -1.10 1.18 0.69 2.26 0.02 5.52 1.20 12.52 0.44 2.03 0.51 0.65 -0.13 FA
MINELAB 75.61 -0.81 1.26 0.49 1.05 0.33 0.18 0.95 1.16 0.27 2.22 -0.37 5.22 -0.68 12.35 -0.03 1.96 -0.41 0.68 0.84 FA AAS,GRAV
MINELAB 79.36 0.14 1.24 0.13 1.08 0.81 0.57 3.00 1.18 0.69 2.19 -0.65 5.32 -0.05 12.79 1.19 1.98 -0.14 0.72 2.13 FA GRAV
MINELAB 76.29 -0.64 1.16 -1.35 0.87 -2.58 0.16 -0.42 1.15 0.06 2.19 -0.65 5.10 -1.43 12.28 -0.23 1.96 -0.41 0.63 -0.78 FA AAS
MINELAB 76.81 -0.51 1.13 -1.90 0.90 -2.09 0.16 -0.42 0.99 -3.00 1.98 -2.66 4.84 -3.00 11.39 -2.70 1.76 -3.00 0.58 -2.40 FA ES
MINELAB 59.09 -3.00 1.23 -0.06 1.05 0.33 0.17 0.27 1.02 -2.66 2.04 -2.08 4.35 -3.00 12.95 1.63 1.80 -2.51 0.61 -1.43 FA AAS
MINELAB 83.85 1.27 1.26 0.49 1.01 -0.32 0.14 -1.79 1.14 -0.15 2.15 -1.03 5.14 -1.18 12.23 -0.37 1.94 -0.67 0.64 -0.46 FA AAS
MINELAB 75.26 -0.90 1.20 -0.61 1.01 -0.32 0.16 -0.42 1.08 -1.40 2.09 -1.61 5.35 0.14 11.87 -1.37 1.84 -1.98 0.62 -1.11 FA AAS
MINELAB 60.52 -3.00 1.34 2.02 1.18 2.48 0.18 0.81 1.28 2.76 2.42 1.55 5.91 3.00 13.89 3.00 2.23 3.00 0.73 2.58 FA AAS
MINELAB 82.12 0.83 1.40 3.00 1.00 -0.48 0.30 3.00 1.24 1.94 2.42 1.54 4.95 -2.37 12.16 -0.56 2.41 3.00 0.84 3.00 FA AAS
MINELAB 96.12 3.00 1.24 0.13 1.07 0.65 0.20 2.32 1.17 0.48 2.26 0.02 5.45 0.76 12.46 0.27 2.02 0.38 0.67 0.51 FA AAS
MINELAB 87.34 2.15 1.20 -0.61 1.06 0.49 0.20 2.32 1.13 -0.36 2.30 0.40 5.58 1.58 13.13 2.13 1.99 -0.01 0.72 2.13 FA AAS
MINELAB 78.50 -0.08 1.22 -0.24 1.03 0.01 0.16 -0.42 1.11 -0.77 2.23 -0.27 5.22 -0.68 12.40 0.11 2.06 0.91 0.66 0.19 FA AAS
MINELAB 102.86 3.00 1.22 -0.24 1.05 0.33 0.27 3.00 1.12 -0.57 2.29 0.30 6.00 3.00 12.30 -0.17 2.05 0.78 0.68 0.84 FA AAS
MINELAB nr nr 1.27 0.68 1.05 0.33 0.60 3.00 1.17 0.48 2.25 -0.08 5.35 0.14 nr nr 1.98 -0.14 0.65 -0.13 FA AAS
MINELAB 77.43 -0.35 1.03 -3.00 0.94 -1.45 0.18 0.95 1.11 -0.77 2.15 -1.03 6.11 3.00 12.87 1.41 1.94 -0.67 0.67 0.51 FA AAS
MINELAB 80.64 0.46 1.16 -1.35 1.06 0.49 <0.10 -3.00 1.12 -0.57 2.20 -0.56 5.40 0.45 12.30 -0.17 1.96 -0.41 0.64 -0.46 FA GRAV
MINELAB 77.11 -0.43 1.33 1.79 1.12 1.46 0.21 3.00 1.22 1.53 2.34 0.78 5.47 0.89 12.07 -0.81 2.02 0.38 0.69 1.16 FA AAS
MINELAB 73.44 -1.36 1.19 -0.80 0.96 -1.12 0.17 0.27 1.04 -2.24 2.12 -1.32 4.60 -3.00 11.11 -3.00 1.88 -1.46 0.64 -0.46 FA AAS,GRAV
MINELAB 80.77 0.49 1.20 -0.61 1.05 0.33 0.16 -0.42 1.09 -1.19 2.25 -0.08 5.47 0.89 12.68 0.88 1.95 -0.54 0.61 -1.43 FA AAS
MINELAB 86.15 1.85 1.24 0.13 1.05 0.33 0.19 1.64 1.14 -0.15 2.19 -0.65 4.84 -3.00 12.10 -0.73 1.94 -0.67 0.67 0.51 AR AAS
MINELAB 83.96 1.30 1.42 3.00 1.16 2.11 0.26 3.00 1.33 3.00 2.28 0.21 5.36 0.20 12.47 0.30 2.04 0.65 0.73 2.45 AAS
MINELAB 85.06 1.58 1.22 -0.24 0.98 -0.80 0.17 0.27 1.15 0.06 2.18 -0.75 5.20 -0.80 12.20 -0.45 1.94 -0.67 0.65 -0.13 FA AAS
MINELAB 72.31 -1.64 1.26 0.49 1.08 0.81 0.16 -0.42 1.21 1.32 2.28 0.21 5.37 0.26 12.30 -0.17 1.96 -0.41 0.68 0.84 FA AAS
MINELAB 79.03 0.05 1.21 -0.43 1.02 -0.15 0.19 1.64 1.07 -1.61 2.13 -1.23 5.28 -0.30 11.71 -1.81 1.86 -1.72 0.64 -0.46 FA AAS
MINELAB 76.40 -0.61 1.30 1.23 0.90 -2.09 <0.50 bld 1.40 3.00 2.40 1.35 5.50 1.08 12.50 0.38 2.10 1.43 0.80 3.00 FA GRAV
MINELAB 79.70 0.22 1.16 -1.35 1.03 0.01 0.22 3.00 1.14 -0.15 2.17 -0.84 5.46 0.82 12.50 0.38 2.00 0.12 0.64 -0.46 FA AAS
MINELAB 86.70 1.99 1.12 -2.09 0.99 -0.64 0.16 -0.42 1.17 0.48 2.25 -0.08 5.59 1.64 12.70 0.94 2.05 0.78 0.66 0.19 FA
MINELAB 76.38 -0.61 1.19 -0.80 1.01 -0.32 0.17 0.27 1.17 0.48 2.25 -0.08 5.68 2.20 12.47 0.30 2.02 0.38 0.65 -0.13 FA AAS
MINELAB 71.83 -1.76 1.24 0.13 1.05 0.33 0.16 -0.42 1.16 0.27 2.18 -0.75 4.87 -2.87 11.82 -1.51 1.90 -1.20 0.66 0.19 FA AAS
MINELAB 68.22 -2.67 1.26 0.49 1.12 1.46 0.26 3.00 1.27 2.57 2.27 0.11 4.44 -3.00 7.77 -3.00 1.90 -1.20 0.84 3.00
MINELAB 71.71 -1.79 1.23 -0.06 1.04 0.17 0.15 -1.10 1.13 -0.36 2.19 -0.65 5.40 0.45 11.90 -1.28 nr nr 0.60 -1.75 FA ES
MINELAB 79.49 0.17 1.23 -0.06 0.94 -1.45 0.18 0.95 1.16 0.27 2.37 1.07 5.29 -0.24 12.43 0.19 1.99 -0.01 0.65 -0.13 FA AAS
MINELAB 82.66 0.97 1.21 -0.43 1.01 -0.30 0.15 -1.24 1.14 -0.25 2.31 0.45 5.37 0.28 12.50 0.38 1.98 -0.12 0.64 -0.36 FA AAS
MINELAB 73.50 -1.34 1.10 -2.45 0.85 -2.90 0.16 -0.42 1.11 -0.77 2.09 -1.61 5.15 -1.12 12.00 -1.01 1.82 -2.25 0.64 -0.46 FA AAS
MINELAB 87.28 2.14 1.15 -1.53 0.94 -1.45 0.18 0.95 1.11 -0.77 2.00 -2.47 5.37 0.26 12.66 0.83 1.85 -1.85 0.63 -0.78 FA AAS,GRAV
MINELAB 67.34 -2.90 1.40 3.00 1.02 -0.15 0.18 0.95 1.20 1.11 2.32 0.59 3.52 -3.00 11.62 -2.06 2.00 0.12 0.65 -0.13 FA
MINELAB 73.65 -1.30 1.33 1.79 1.13 1.62 0.20 2.32 1.24 1.94 2.32 0.59 5.81 3.00 12.97 1.69 2.05 0.78 0.72 2.13 FA AAS
MINELAB 79.40 0.15 1.12 -2.09 1.11 1.30 <0.20 bld 1.20 1.11 2.33 0.68 5.30 -0.18 12.50 0.38 2.17 2.35 0.57 -2.72 FA GRAV
MINELAB 75.80 -0.76 1.29 1.05 1.07 0.65 0.17 0.27 1.20 1.11 2.24 -0.18 5.32 -0.05 12.40 0.11 2.04 0.65 0.70 1.48 FA GRAV
MINELAB 82.39 0.90 1.28 0.86 1.18 2.43 0.22 3.00 1.22 1.53 2.07 -1.80 5.06 -1.68 12.23 -0.37 2.00 0.12 0.60 -1.75 FA AAS,GRAV
MINELAB 74.10 -1.19 1.29 1.05 1.00 -0.48 0.23 3.00 1.06 -1.82 2.18 -0.75 10.20 3.00 5.10 -3.00 1.92 -0.93 0.63 -0.78 FA AAS
MINELAB 59.40 -3.00 1.23 -0.06 0.97 -0.96 0.16 -0.42 1.15 0.06 2.35 0.87 5.30 -0.18 11.97 -1.09 1.99 -0.01 0.66 0.19 FA AAS
MINELAB 79.56 0.19 1.20 -0.68 1.00 -0.46 0.17 0.40 1.14 -0.23 2.21 -0.44 5.22 -0.65 12.96 1.66 1.88 -1.51 0.65 -0.10 FA AAS
MINELAB 77.10 -0.43 1.24 0.13 1.04 0.17 0.18 0.95 1.14 -0.15 2.22 -0.37 5.12 -1.31 12.20 -0.45 1.99 -0.01 0.66 0.19 FA AAS
MINELAB 80.88 0.52 1.17 -1.16 1.01 -0.32 0.15 -1.10 1.20 1.11 2.09 -1.61 5.34 0.07 12.08 -0.78 1.98 -0.14 0.66 0.19 FA AAS
MINELAB 80.68 0.47 1.21 -0.43 1.06 0.49 0.17 0.27 1.20 1.11 2.20 -0.56 5.37 0.26 12.36 -0.01 1.99 -0.01 0.63 -0.78 FA
MINELAB 77.10 -0.43 1.23 -0.06 1.05 0.33 0.17 0.27 1.14 -0.15 2.17 -0.84 5.28 -0.30 11.90 -1.28 1.97 -0.28 0.65 -0.13 FA ES
MINELAB 75.65 -0.80 1.24 0.13 1.02 -0.15 0.16 -0.42 1.13 -0.36 2.16 -0.94 5.34 0.07 12.21 -0.42 1.96 -0.41 0.65 -0.13 FA AAS,GRAV
MINELAB 81.50 0.68 1.24 0.13 1.06 0.49 0.18 0.95 1.15 0.06 2.18 -0.75 5.58 1.58 12.38 0.05 2.07 1.04 0.64 -0.46 FA AAS
MINELAB 78.60 -0.05 1.13 -1.90 1.04 0.17 0.15 -1.10 1.24 1.94 2.18 -0.75 5.34 0.07 12.75 1.08 2.01 0.25 0.66 0.19 FA AAS
MINELAB 7.86 -3.00 1.04 -3.00 0.92 -1.77 0.16 -0.42 1.16 0.27 2.01 -2.37 5.12 -1.31 12.00 -1.01 1.84 -1.98 0.64 -0.46 FA AAS
MINELAB 79.90 0.27 1.34 1.97 1.18 2.43 0.19 1.64 1.22 1.53 2.42 1.54 5.19 -0.87 12.80 1.22 2.03 0.51 0.85 3.00 FA AAS
MINELAB 80.05 0.31 1.32 1.60 1.05 0.33 0.19 1.64 1.20 1.11 2.24 -0.18 5.11 -1.37 12.48 0.33 1.99 -0.01 0.68 0.84 FA AAS
MINELAB 80.00 0.30 1.20 -0.61 1.00 -0.48 0.18 0.95 1.09 -1.19 2.21 -0.46 5.17 -0.99 11.60 -2.12 1.79 -2.64 0.66 0.19 FA AAS
MINELAB 81.00 0.55 1.22 -0.24 1.02 -0.15 0.17 0.27 1.18 0.69 2.25 -0.08 4.94 -2.43 11.90 -1.28 2.00 0.12 0.68 0.84 FA AAS
MINELAB 84.70 1.49 1.40 3.00 1.20 2.75 0.60 3.00 1.90 3.00 2.30 0.40 5.50 1.08 12.10 -0.73 2.30 3.00 1.30 3.00 FA GRAV
MINELAB 81.37 0.64 1.33 1.84 nr nr 0.13 -2.68 1.03 -2.45 2.53 2.63 5.89 3.00 12.29 -0.19 2.53 3.00 0.66 0.12 FA GRAV
MINELAB 78.60 -0.05 1.24 0.13 1.04 0.17 0.17 0.27 1.14 -0.15 2.20 -0.56 5.55 1.39 12.32 -0.12 1.99 -0.01 0.65 -0.13 FA AAS
MINELAB 82.16 0.84 1.20 -0.61 1.04 0.17 0.17 0.27 1.13 -0.36 2.15 -1.03 5.50 1.08 12.42 0.16 1.95 -0.54 0.58 -2.40 FA AAS
MINELAB 76.12 -0.68 1.32 1.60 1.09 0.98 0.17 0.27 1.17 0.48 2.27 0.11 5.42 0.57 12.67 0.86 2.03 0.51 0.69 1.16 FA AAS
Method Reading
Zarazma Minerals Studies Company Report Page 1
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Zarazma Minerals Studies Company ReportPage 2
50 gram Fire Assay - Mean of Absolute Standardized Values - April 2020 50 gram Fire Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Aqua Regia Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference G320-1 G320-2 G320-3 G320-4 G320-5 G320-6 G320-7 G320-8 G320-9 G320-10
MEAN (ppm) 78.03 1.20 0.99 0.16 1.16 2.18 5.27 12.31 1.99 0.66
STDEV (ppm) 3.40 0.07 0.12 0.02 0.06 0.08 0.25 0.42 0.11 0.05
95% CI (ppm) 1.04 0.02 0.03 0.01 0.02 0.02 0.07 0.12 0.03 0.01
95% CI (%) 1.33% 1.59% 3.24% 3.13% 1.53% 1.02% 1.31% 1.00% 1.57% 2.10% Aqua Regia Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 70.90 1.07 0.66 0.13 1.05 1.97 4.67 11.40 1.77 0.56
MEDIAN (ppm) 78.34 1.19 0.98 0.16 1.16 2.18 5.29 12.28 1.98 0.65
MAX (ppm) 84.08 1.37 1.29 0.21 1.31 2.37 5.89 13.40 2.30 0.78
IQR (ppm) 4.39 0.08 0.15 0.02 0.08 0.09 0.32 0.55 0.11 0.06
COUNT 42 48 54 49 51 50 51 46 53 54
Standard Reference G320-1 G320-2 G320-3 G320-4 G320-5 G320-6 G320-7 G320-8 G320-9 G320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB >30.00 ald 1.41 3.00 1.15 1.39 0.19 1.32 1.28 1.81 2.45 3.00 5.48 0.84 13.40 2.60 2.15 1.39 0.72 1.24 AR MS
COMLAB 70.90 -2.10 1.21 0.20 0.98 -0.04 0.16 -0.23 1.15 -0.22 2.19 0.07 5.22 -0.20 12.30 -0.02 1.88 -0.96 0.64 -0.32 PR,AR MS
COMLAB 72.55 -1.61 1.23 0.50 1.04 0.46 0.16 -0.23 0.93 -3.00 2.27 1.07 5.03 -0.97 11.78 -1.25 1.92 -0.61 0.57 -1.69 AR AAS
COMLAB >5.00 ald 0.84 -3.00 1.04 0.42 0.16 -0.50 1.26 1.50 2.23 0.57 >5.00 ald >5.00 ald 1.99 -0.04 0.67 0.30 AR AAS
COMLAB 78.00 -0.01 1.24 0.65 0.95 -0.30 0.14 -1.33 1.23 1.03 2.13 -0.69 5.47 0.80 12.70 0.93 2.00 0.09 0.65 -0.13 AR MS
COMLAB 69.60 -2.48 1.17 -0.40 0.91 -0.64 0.17 0.10 1.08 -1.31 2.18 -0.06 5.32 0.20 12.60 0.70 1.83 -1.39 0.65 -0.17 FA ICP
COMLAB 74.70 -0.98 1.17 -0.40 0.94 -0.38 0.18 0.88 1.14 -0.37 2.11 -0.94 5.06 -0.85 11.45 -2.03 1.96 -0.26 0.65 -0.13 AR MS
COMLAB 88.80 3.00 1.14 -0.85 0.88 -0.89 0.16 -0.23 1.10 -1.00 2.20 0.19 5.21 -0.25 12.70 0.93 2.00 0.09 0.60 -1.10 AR MS
COMLAB 82.70 1.38 1.14 -0.85 0.98 -0.04 0.16 -0.23 1.05 -1.78 2.23 0.57 4.84 -1.73 11.60 -1.68 1.97 -0.18 0.65 -0.13 AR MS
COMLAB 81.42 1.00 1.25 0.80 1.23 2.07 0.26 3.00 1.17 0.09 2.22 0.44 5.32 0.20 12.56 0.60 1.30 -3.00 0.59 -1.30 AR ES
COMLAB 81.00 0.88 1.09 -1.60 0.95 -0.30 0.16 -0.23 1.08 -1.31 2.11 -0.94 4.95 -1.29 12.40 0.22 1.94 -0.44 0.55 -2.08 AR
COMLAB >10.00 ald 1.22 0.38 1.11 1.05 0.14 -1.50 1.11 -0.92 2.25 0.84 5.35 0.31 >10.00 ald 1.90 -0.81 0.69 0.67 PR,AR MS
COMLAB 77.40 -0.18 1.16 -0.55 0.92 -0.57 0.14 -1.50 1.08 -1.31 2.13 -0.69 5.03 -0.97 11.90 -0.97 1.77 -1.91 0.60 -1.03 AR MS
COMLAB >10.00 ald 1.30 1.59 0.97 -0.14 0.18 0.60 1.13 -0.58 2.23 0.53 5.41 0.56 >10.00 ald 1.79 -1.71 0.65 -0.11 AR AAS
COMLAB 81.70 1.08 1.18 -0.25 0.97 -0.13 0.16 -0.23 1.11 -0.84 2.18 -0.06 5.25 -0.08 12.30 -0.02 1.95 -0.35 0.63 -0.52 AR MS
COMLAB >10.00 ald 1.16 -0.55 1.03 0.38 0.15 -0.61 1.10 -1.07 2.18 -0.06 5.45 0.72 >10.00 ald 2.03 0.35 0.66 -0.01 AR MS
COMLAB 74.11 -1.15 1.15 -0.70 1.09 0.88 0.17 0.32 1.16 -0.06 2.30 1.45 5.47 0.80 11.97 -0.80 2.06 0.61 0.67 0.26 AR MS
COMLAB 76.20 -0.54 1.14 -0.85 0.96 -0.21 0.14 -1.33 1.10 -1.00 2.10 -1.06 4.82 -1.81 11.40 -2.15 1.90 -0.78 0.60 -1.10 PR,AR AAS
COMLAB 81.30 0.96 1.25 0.80 0.99 0.04 0.18 0.88 1.18 0.25 2.18 -0.06 nr nr 12.81 1.19 1.97 -0.18 0.64 -0.32 AR AAS
COMLAB 0.85 -3.00 9.66 3.00 1.11 1.05 0.43 3.00 0.02 -3.00 0.20 -3.00 0.48 -3.00 0.58 -3.00 0.15 -3.00 2.08 3.00 AR MS
COMLAB 77.44 -0.17 1.37 2.61 0.98 -0.04 <0.05 -3.00 1.05 -1.78 2.11 -0.94 4.89 -1.53 11.04 -3.00 1.84 -1.31 0.56 -1.89 AR AAS
COMLAB 71.33 -1.97 0.80 -3.00 0.50 -3.00 <0.20 bld 1.20 0.56 1.97 -2.69 4.84 -1.73 10.79 -3.00 2.05 0.52 0.60 -1.10 AR AAS
COMLAB >15.00 ald 1.23 0.50 1.01 0.21 0.16 -0.23 1.18 0.25 2.29 1.32 5.28 0.04 12.80 1.17 1.97 -0.18 0.62 -0.71 AR MS
COMLAB 81.24 0.95 1.15 -0.70 0.90 -0.72 0.19 1.43 1.09 -1.15 2.10 -1.06 5.04 -0.93 11.93 -0.89 1.92 -0.61 0.63 -0.52 AR AAS
COMLAB 73.00 -1.48 1.23 0.50 1.05 0.55 0.15 -0.78 1.20 0.56 2.09 -1.19 5.47 0.80 12.20 -0.25 1.87 -1.04 0.64 -0.32 AR AAS
COMLAB 78.40 0.11 1.24 0.65 1.07 0.72 0.14 -1.33 1.14 -0.37 2.18 -0.06 5.10 -0.69 12.25 -0.13 2.07 0.69 0.62 -0.71 AR AAS
COMLAB 80.10 0.61 1.28 1.25 1.09 0.88 0.13 -1.88 1.15 -0.22 2.16 -0.31 5.23 -0.16 11.88 -1.01 1.93 -0.52 0.63 -0.52 AR MS
COMLAB 66.50 -3.00 1.26 0.95 1.06 0.63 0.17 0.54 1.16 -0.06 2.18 -0.06 1.55 -3.00 14.30 3.00 1.99 0.00 0.70 0.89 AR AAS
COMLAB 79.10 0.32 1.21 0.20 0.98 -0.04 0.15 -0.61 1.16 -0.06 2.25 0.82 5.38 0.44 12.90 1.41 2.01 0.17 0.69 0.65 AR MS
COMLAB >25.00 ald 1.19 -0.10 0.95 -0.30 0.16 -0.23 1.13 -0.53 2.22 0.44 5.33 0.24 12.41 0.25 1.91 -0.70 0.64 -0.32 AR MS
COMLAB >25.00 ald 1.19 -0.10 0.94 -0.38 0.15 -0.78 1.13 -0.53 2.22 0.44 5.47 0.80 12.45 0.34 1.99 0.00 0.64 -0.32 AR ICP
COMLAB >50.00 ald 1.07 -1.91 0.86 -1.06 0.15 -0.78 1.08 -1.31 2.14 -0.56 5.39 0.48 12.24 -0.16 1.98 -0.09 0.58 -1.49 AR AAS
COMLAB 84.08 1.78 1.14 -0.85 nr nr 0.17 0.32 1.19 0.41 nr nr 5.45 0.72 12.37 0.15 1.86 -1.13 0.02 -3.00 AR AAS
COMLAB 80.60 0.76 1.23 0.50 0.81 -1.48 0.14 -1.33 1.16 -0.06 2.27 1.07 4.83 -1.77 13.00 1.65 2.03 0.35 0.66 0.07 AR AAS
COMLAB 71.90 -1.80 1.12 -1.15 0.92 -0.55 0.16 -0.23 0.96 -3.00 2.07 -1.44 5.22 -0.20 12.20 -0.25 1.95 -0.35 0.64 -0.32 AR AAS
COMLAB 78.30 0.08 1.15 -0.70 0.91 -0.64 0.18 0.88 1.13 -0.53 2.08 -1.31 5.13 -0.57 12.00 -0.73 1.96 -0.26 0.71 1.04 AR DIBK,AAS
COMLAB 81.80 1.11 1.16 -0.55 0.93 -0.47 0.16 -0.23 1.18 0.25 2.16 -0.31 5.18 -0.37 12.20 -0.25 1.97 -0.18 0.66 0.07 AR AAS
COMLAB 75.85 -0.64 1.40 3.00 1.16 1.48 0.22 3.00 1.45 3.00 2.46 3.00 5.89 2.49 10.18 -3.00 2.30 2.70 0.71 1.04 AR DIBK,AAS
COMLAB 76.17 -0.55 1.66 3.00 1.13 1.22 0.17 0.32 1.26 1.50 2.37 2.33 5.62 1.40 12.03 -0.66 2.27 2.43 0.77 2.22 AR AAS
MINELAB 75.20 -0.83 1.33 2.01 1.06 0.63 0.20 1.98 1.28 1.81 2.53 3.00 5.66 1.57 12.89 1.38 2.23 2.09 0.73 1.44 AR,DIBK AAS
MINELAB 76.40 -0.48 1.23 0.46 1.01 0.19 0.18 0.82 1.19 0.39 2.21 0.31 5.22 -0.21 12.75 1.06 2.02 0.29 0.64 -0.40 AR AAS
MINELAB 79.68 0.49 1.14 -0.85 0.91 -0.64 0.19 1.43 1.18 0.25 2.14 -0.56 5.04 -0.93 11.92 -0.92 1.80 -1.65 0.59 -1.30 LW AAS
MINELAB 85.66 2.25 1.24 0.65 1.05 0.55 0.21 2.53 1.14 -0.37 2.12 -0.81 5.09 -0.73 12.43 0.29 2.07 0.69 0.67 0.26 FA AAS,GRAV
MINELAB 78.00 -0.01 1.29 1.41 1.29 2.57 0.23 3.00 1.27 1.66 2.21 0.32 5.41 0.56 12.50 0.46 2.10 0.96 0.73 1.44 AR DIBK,AAS
MINELAB 76.20 -0.54 1.14 -0.85 0.85 -1.14 0.15 -0.78 1.13 -0.53 2.16 -0.31 5.07 -0.81 12.25 -0.13 1.95 -0.35 0.64 -0.32 AR AAS
MINELAB 80.48 0.72 0.93 -3.00 0.66 -2.75 0.20 1.98 0.96 -3.00 2.10 -1.06 4.67 -2.42 12.30 -0.02 1.64 -3.00 0.57 -1.69 AR AAS
MINELAB 71.15 -2.02 1.22 0.35 1.02 0.29 0.17 0.32 1.10 -1.00 2.18 -0.06 5.27 0.00 12.22 -0.21 1.98 -0.09 0.63 -0.52 AR AAS
MINELAB 71.56 -1.90 1.14 -0.85 0.97 -0.13 0.17 0.32 1.08 -1.31 2.05 -1.69 4.64 -2.54 11.48 -1.96 1.75 -2.09 0.63 -0.52 FA AAS,GRAV
MINELAB 80.55 0.74 1.19 -0.10 0.83 -1.31 0.16 -0.23 1.17 0.09 2.25 0.82 5.51 0.96 13.04 1.74 2.05 0.52 0.68 0.46 AR AAS
MINELAB 79.50 0.43 1.12 -1.15 0.89 -0.80 0.17 0.32 1.19 0.41 2.19 0.07 5.29 0.08 12.33 0.06 2.01 0.17 0.66 0.07 AR DIBK,AAS
MINELAB 79.91 0.55 1.11 -1.30 0.81 -1.48 0.16 -0.23 1.10 -1.00 2.19 0.07 5.21 -0.25 12.41 0.25 1.98 -0.09 0.67 0.26 AAS
MINELAB 82.19 1.23 1.17 -0.40 0.99 0.04 0.17 0.32 1.26 1.50 2.27 1.07 5.37 0.40 12.35 0.10 2.14 1.30 0.71 1.04 AR AAS
MINELAB 85.54 2.21 1.25 0.80 0.88 -0.89 0.16 -0.23 1.20 0.56 2.23 0.57 5.59 1.28 12.43 0.29 2.01 0.17 0.68 0.46 FA AAS
MINELAB 88.00 2.94 1.39 2.83 1.17 1.52 0.19 1.43 1.30 2.05 2.33 1.76 5.30 0.12 12.00 -0.73 2.07 0.65 0.65 -0.13 FA,AR GRAV,MS
MINELAB 24.45 -3.00 1.36 2.46 1.17 1.56 0.24 3.00 1.25 1.34 2.37 2.33 11.03 3.00 10.25 -3.00 2.00 0.09 0.76 2.02
MINELAB 1.24 -3.00 2.08 3.00 2.89 3.00 2.29 3.00 0.12 -3.00 80.92 3.00 1.03 -3.00 0.63 -3.00 1.23 -3.00 12.87 3.00 AR AAS,DIBK
MINELAB 77.10 -0.27 1.42 3.00 1.19 1.73 0.19 1.43 1.31 2.28 2.56 3.00 5.72 1.81 12.67 0.86 2.19 1.74 0.78 2.41 AR AAS
MINELAB 77.20 -0.24 1.15 -0.70 0.89 -0.80 0.17 0.32 1.11 -0.84 2.15 -0.44 5.29 0.08 11.94 -0.87 1.88 -0.96 0.62 -0.71 AR,DIBK AAS
MINELAB 77.17 -0.25 1.19 -0.10 0.88 -0.89 0.21 2.53 1.17 0.09 2.16 -0.31 5.24 -0.12 11.96 -0.82 1.93 -0.52 0.67 0.26 AR,DIBK AAS
MINELAB >50.00 ald 1.09 -1.60 0.87 -0.97 0.15 -0.78 1.11 -0.84 2.16 -0.31 5.34 0.28 12.18 -0.30 1.98 -0.09 0.72 1.24 AR AAS
MINELAB 79.03 0.30 1.28 1.25 1.14 1.31 0.21 2.53 1.21 0.72 2.26 0.95 5.26 -0.04 12.53 0.53 2.06 0.61 0.69 0.65 FA ICP
MINELAB 79.90 0.55 1.13 -0.97 0.81 -1.45 0.15 -0.67 1.14 -0.37 2.10 -1.02 5.08 -0.75 12.00 -0.73 1.84 -1.29 0.65 -0.17 AR DIBK,AAS
MINELAB 81.60 1.05 1.16 -0.55 0.93 -0.47 0.19 1.43 1.20 0.56 2.01 -2.19 5.67 1.61 11.40 -2.15 2.16 1.48 0.72 1.24 AR AAS
MINELAB 78.38 0.10 1.22 0.35 1.03 0.38 0.16 -0.23 1.14 -0.37 2.20 0.19 5.34 0.28 12.25 -0.13 1.93 -0.52 0.65 -0.13 AR AAS
MINELAB 80.87 0.84 1.21 0.13 0.97 -0.13 0.16 -0.28 1.28 1.73 2.30 1.49 5.33 0.23 12.47 0.39 2.16 1.45 0.70 0.91 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Results reported by Fire Assay or NAA were not included in the calculation of the statistics.
Method Reading
Zarazma Minerals Studies Company Report Page 3
Aqua Regia Assay - Mean of Absolute Standardized Values - April 2020 Aqua Regia Fire Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
COMLAB
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Zarazma Minerals Studies Company ReportPage 4
Low Grade Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GLG320-1 GLG320-2 GLG320-3 GLG320-4 GLG320-5
MEAN (ppb) 322 66 52 3 54
STDEV (ppb) 18 5 5 2 5
95% CI (ppb) 4 1 1 1 1
95% CI (%) 1.17% 1.77% 1.98% 22.04% 2.17% Low Grade Gold Assay - Mean of Absolute Standardized Values - April 2020MIN (ppb) 283 51 43 1 44
MEDIAN (ppb) 320 66 51 2 53
MAX (ppb) 370 80 64 8 68
IQR (ppb) 16 7 6 3 6
COUNT 85 83 77 39 81
Standard Reference GLG320-1 GLG320-2 GLG320-3 GLG320-4 GLG320-5
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 335 0.73 66 0.02 48 -0.83 1 -1.04 55 0.16 FA AAS
COMLAB 313 -0.52 71 0.88 51 -0.26 <2 bld 52 -0.31 FA MS
COMLAB 324 0.11 71 0.88 56 0.83 1 -0.94 65 2.13 FA AAS
COMLAB 336 0.79 69 0.51 53 0.18 <5 bld 54 0.06 FA AAS
COMLAB 317 -0.29 65 -0.22 51 -0.26 <5 bld 58 0.81 FA ES
COMLAB 284 -2.17 60 -1.22 48 -1.00 2 -0.59 49 -0.88 FA AAS
COMLAB 283 -2.23 57 -1.70 44 -1.79 <2 bld 45 -1.63 FA AAS
COMLAB 300 -1.26 67 0.16 48 -1.02 1 -0.74 48 -1.14 PR,AR MS
COMLAB 321 -0.07 64 -0.41 51 -0.26 2 -0.44 52 -0.31 FA ES
COMLAB 324 0.11 67 0.05 53 0.07 1 -0.94 51 -0.60 FA ICP
COMLAB 314 -0.46 61 -0.96 48 -0.91 1 -0.94 48 -1.07 FA ES
COMLAB 327 0.28 70 0.70 56 0.83 6 1.57 60 1.19 FA AAS
COMLAB 319 -0.18 65 -0.22 52 -0.04 <2 bld 52 -0.31 FA AAS
COMLAB 325 0.16 64 -0.41 50 -0.48 1 -0.94 50 -0.69 FA ES
COMLAB 289 -1.89 66 -0.04 47 -1.13 6 1.57 49 -0.88 FA AAS
COMLAB 319 -0.18 67 0.15 54 0.39 2 -0.44 56 0.44 FA AAS
COMLAB 317 -0.29 66 -0.04 54 0.39 <2 bld 54 0.06 FA AAS
COMLAB 312 -0.58 62 -0.78 51 -0.26 2 -0.44 56 0.44 FA ES
COMLAB 319 -0.18 66 -0.04 50 -0.48 nr nr 49 -0.88 FA ES
COMLAB 329 0.39 69 0.51 55 0.61 3 0.06 53 -0.13 FA AAS
COMLAB 318 -0.24 66 -0.04 50 -0.48 nr nr 50 -0.69 FA ES
COMLAB 323 0.07 74 1.51 61 1.92 10 3.00 65 2.17 FA ES
COMLAB 318 -0.23 86 3.00 58 1.16 <5 bld 56 0.47 FA AAS
COMLAB 319 -0.18 60 -1.14 46 -1.35 2 -0.44 51 -0.50 FA MS
COMLAB 336 0.79 63 -0.59 51 -0.26 1 -0.94 50 -0.69 FA ES
COMLAB 330 0.45 70 0.70 60 1.70 <10 bld 60 1.19 FA AAS
COMLAB 353 1.76 71 0.88 56 0.83 <2 bld 54 0.06 NAA
COMLAB 334 0.65 75 1.69 51 -0.35 1 -1.19 52 -0.35 AR MS
COMLAB 328 0.33 65 -0.22 51 -0.26 <2 bld 58 0.81 FA ES
COMLAB 336 0.76 71 0.86 60 1.59 1 -0.84 55 0.23 AR MS
COMLAB 36 -3.00 6 -3.00 11 -3.00 4 0.56 8 -3.00 AR MS
COMLAB 344 1.24 76 1.80 78 3.00 16 3.00 66 2.32 FA AAS
COMLAB 307 -0.86 60 -1.14 43 -2.00 bld bld 46 -1.44 FA AAS
COMLAB 330 0.45 72 1.14 47 -1.11 1 -0.94 54 0.14 AR GF,AAS
COMLAB 312 -0.59 62 -0.80 46 -1.37 <5 bld 51 -0.55 FA AAS
COMLAB 315 -0.41 60 -1.14 49 -0.70 <1 bld 48 -1.07 FA ES
COMLAB 315 -0.41 62 -0.78 48 -0.91 <1 bld 47 -1.25 FA MS
COMLAB 313 -0.52 63 -0.59 51 -0.26 3 0.06 50 -0.69 FA MS
COMLAB 299 -1.32 60 -1.14 48 -0.91 5 1.07 48 -1.07 FA AAS
COMLAB 332 0.56 63 -0.59 51 -0.26 4 0.56 47 -1.25 FA AAS
COMLAB 327 0.28 58 -1.51 48 -0.98 2 -0.69 48 -1.07 FA AAS
COMLAB 297 -1.43 59 -1.33 49 -0.70 <1 bld 47 -1.25 FA ES
COMLAB 318 -0.26 69 0.42 52 0.04 1 -0.94 53 -0.11 FA ES
COMLAB 339 0.93 64 -0.46 51 -0.20 4 0.46 44 -1.76 FA ES
COMLAB 342 1.13 66 0.02 48 -0.83 1 -1.14 53 -0.22 AR MS
COMLAB 324 0.11 63 -0.59 49 -0.70 <1 bld 48 -1.07 AR MS
COMLAB 317 -0.32 63 -0.68 50 -0.44 1 -0.89 50 -0.61 AR ICP
COMLAB 340 1.02 65 -0.22 <50 bld <50 bld 54 0.06 FA AAS
COMLAB 299 -1.32 64 -0.41 54 0.39 6 1.57 52 -0.31 FA,GF AAS
COMLAB 323 0.05 65 -0.22 53 0.18 2 -0.44 54 0.06 FA ICP
COMLAB 318 -0.24 51 -2.80 46 -1.35 4 0.56 51 -0.50 FA GRAV
COMLAB 323 0.05 67 0.15 53 0.22 <5 bld 53 -0.09 FA ES
COMLAB 296 -1.47 65 -0.20 54 0.44 <5 bld 48 -1.12 FA
COMLAB 313 -0.51 60 -1.16 57 1.05 <1 bld 52 -0.28 AR AAS
COMLAB 325 0.16 70 0.70 56 0.83 10 3.00 59 1.00 FA ES
COMLAB 302 -1.15 66 -0.04 50 -0.48 2 -0.44 50 -0.69 AR MS
COMLAB 329 0.39 62 -0.78 50 -0.48 <1 bld 52 -0.31 FA MS
COMLAB 322 0.01 53 -2.42 46 -1.40 3 0.06 50 -0.73 FA AAS
COMLAB 323 0.05 67 0.15 63 2.35 52 3.00 65 2.13 FA AAS
COMLAB 321 -0.07 69 0.51 56 0.83 <2 bld 55 0.25 FA AAS
COMLAB 365 2.45 61 -1.05 48 -0.83 20 3.00 55 0.31 FA AAS
COMLAB 320 -0.12 63 -0.59 53 0.18 <5 bld 53 -0.13 FA ES
COMLAB 350 1.59 78 2.17 76 3.00 4 0.56 55 0.25 FA MS
COMLAB 312 -0.58 62 -0.78 53 0.18 <5 bld 54 0.06 FA AAS
COMLAB 324 0.11 66 -0.04 52 -0.04 5 1.07 51 -0.50 FA AAS
COMLAB 303 -1.09 66 -0.04 49 -0.70 <5 bld 50 -0.69 FA AAS
MINELAB 315 -0.41 71 0.88 53 0.15 7 2.17 58 0.81 FA AAS
MINELAB 363 2.30 75 1.56 115 3.00 55 3.00 93 3.00 AR AAS
MINELAB 319 -0.18 65 -0.22 52 -0.04 <5 bld 52 -0.31 FA
MINELAB 300 -1.24 84 3.00 63 2.40 <30 bld 68 2.62 FA AAS
MINELAB 350 1.59 80 2.54 290 3.00 200 3.00 210 3.00
MINELAB 370 2.73 70 0.70 80 3.00 40 3.00 90 3.00 FA AAS
MINELAB 319 -0.18 69 0.44 55 0.59 14 3.00 48 -1.07 FA AAS
MINELAB 327 0.29 72 1.07 62 2.07 <0.036 bld 59 0.94 FA AAS
MINELAB 323 0.05 67 0.15 47 -1.13 <10 bld 53 -0.13 AR AAS
MINELAB 294 -1.58 61 -0.99 49 -0.66 3 -0.12 49 -0.86 FA ES
MINELAB 340 1.02 66 -0.04 53 0.18 <5 bld 52 -0.31 FA
MINELAB 319 -0.17 67 0.21 55 0.51 6 1.35 55 0.26 FA ES
MINELAB 315 -0.40 62 -0.78 52 0.02 3 0.11 48 -1.12 FA AAS
MINELAB 317 -0.29 67 0.15 59 1.48 <20 bld 62 1.56 FA AAS
MINELAB 350 1.59 80 2.54 60 1.70 10 3.00 70 3.00 AR AAS
MINELAB 309 -0.75 70 0.70 60 1.70 29 3.00 63 1.75 FA
MINELAB 290 -1.83 70 0.70 <50 bld <50 bld 65 2.13 FA AAS
MINELAB 308 -0.81 66 -0.11 54 0.31 <50 bld 60 1.23 FA AAS
MINELAB 338 0.90 68 0.33 <50 bld <50 bld 60 1.26 FA AAS
MINELAB 360 2.16 64 -0.41 49 -0.70 14 3.00 57 0.62 FA AAS
MINELAB 325 0.16 67 0.15 55 0.61 10 3.00 57 0.62 FA AAS
MINELAB 317 -0.30 76 1.80 57 1.00 16 3.00 57 0.66 FA ES
MINELAB 315 -0.39 67 0.05 53 0.13 2 -0.49 55 0.29 FA AAS
MINELAB 344 1.27 74 1.47 64 2.57 8 2.62 62 1.58 FA AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 5
Low Grade Gold Assay - Mean of Absolute Standardized Values - April 2020 Low Grade Gold Fire Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
ZARAZMA TEHRAN
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Zarazma Minerals Studies Company ReportPage 6
Gold on Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBC320-1 GBC320-2 GBC320-3 GBC320-4 GLC320-1 GLC320-2
MEAN (ppm) 23 411 48 265 2011 1623
STDEV (ppm) 3 17 3 11 82 59
95% CI (ppm) 1 3 1 2 16 12
95% CI (%) 2.43% 0.82% 1.42% 0.80% 0.80% 0.72% Gold on Carbon Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 15 363 41 235 1800 1483
MEDIAN (ppm) 22 412 48 265 2010 1625
MAX (ppm) 29 451 58 291 2210 1788
IQR (ppm) 4 18 4 14 92 53
COUNT 95 100 98 98 101 99
Standard Reference GBC320-1 GBC320-2 GBC320-3 GBC320-4 GLC320-1 GLC320-2
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 21 -0.64 412 0.03 46 -0.62 267 0.19 2030 0.23 1640 0.30 FA GRAV
COMLAB 19 -1.23 411 -0.04 48 -0.27 262 -0.28 1990 -0.26 1590 -0.55 FA GRAV
COMLAB <0.03 -3.00 406 -0.32 54 1.67 262 -0.28 1870 -1.72 1630 0.13 FA GRAV
COMLAB 26 1.00 415 0.23 45 -0.93 269 0.39 2021 0.12 1623 0.01 FA GRAV
COMLAB 25 0.82 430 1.09 50 0.45 283 1.70 2190 2.18 1775 2.60 AR AAS
COMLAB 27 1.55 391 -1.19 52 1.03 269 0.38 2020 0.11 1620 -0.04 PR,AR AAS
COMLAB 21 -0.64 403 -0.49 46 -0.70 263 -0.19 1963 -0.59 1602 -0.35 AAS
COMLAB 21 -0.64 417 0.33 44 -1.28 263 -0.19 2080 0.84 1650 0.47 PR,AR AAS
COMLAB 27 1.55 442 1.79 56 2.19 280 1.41 2130 1.45 1715 1.58 AR AAS
COMLAB 20 -1.01 386 -1.48 43 -1.57 244 -1.98 2050 0.47 1665 0.72 AAS
COMLAB 21 -0.53 420 0.50 50 0.45 265 -0.04 2078 0.81 1637 0.24 FA GRAV
COMLAB 20 -1.01 404 -0.43 46 -0.70 263 -0.19 1989 -0.27 1598 -0.42 AAS
COMLAB 21 -0.64 395 -0.96 49 0.17 255 -0.94 2010 -0.02 1650 0.47 PR,AR AAS
COMLAB 21 -0.56 409 -0.17 46 -0.67 266 0.13 1995 -0.20 1612 -0.18 FA GRAV
COMLAB 13 -3.00 417 0.33 45 -0.99 277 1.13 2054 0.52 1645 0.38 FA GRAV
COMLAB 39 3.00 448 2.11 48 -0.04 276 1.00 2163 1.85 1750 2.17 AAS
COMLAB <10 -3.00 418 0.39 <10 -3.00 271 0.57 2073 0.75 1691 1.17 FA GRAV
COMLAB 25 0.79 418 0.41 54 1.63 274 0.85 2085 0.90 1628 0.09 FA GRAV
COMLAB 25 0.82 410 -0.08 51 0.74 268 0.28 1800 -2.58 1520 -1.75 AR AAS
COMLAB 17 -1.99 409 -0.12 36 -3.00 261 -0.41 1993 -0.22 1594 -0.49 FA GRAV
COMLAB 11 -3.00 116 -3.00 24 -3.00 85 -3.00 977 -3.00 786 -3.00 PR,AR AAS
COMLAB 22 -0.28 378 -1.95 45 -0.99 253 -1.13 2028 0.20 1655 0.55 FA AAS,GRAV
COMLAB 22 -0.11 426 0.86 47 -0.38 277 1.12 2059 0.59 1655 0.55 FA GRAV
COMLAB 24 0.45 425 0.79 50 0.45 270 0.47 2100 1.08 1653 0.52 AD AAS
COMLAB 22 -0.38 363 -2.82 42 -1.73 225 -3.00 1830 -2.21 1514 -1.86 FA AAS
COMLAB 22 -0.28 393 -1.07 45 -0.99 253 -1.13 1927 -1.03 1536 -1.48 FA ES
COMLAB 22 -0.28 407 -0.26 51 0.74 263 -0.19 2036 0.30 1645 0.38 PR,AD AAS
COMLAB 28 1.91 410 -0.08 57 2.48 263 -0.19 2030 0.23 1600 -0.38 AR
COMLAB 27 1.55 450 2.25 46 -0.70 314 3.00 2106 1.16 1850 3.00 FA AAS
COMLAB 23 0.05 378 -1.95 44 -1.40 240 -2.38 1900 -1.36 1550 -1.24 AAS
COMLAB 20 -1.01 437 1.49 48 -0.12 273 0.75 2164 1.86 1729 1.82 PR,AR ES
COMLAB 23 0.09 411 -0.02 45 -0.99 264 -0.09 2004 -0.09 1560 -1.07 PR,AR ES
COMLAB 22 -0.13 405 -0.37 45 -0.93 265 0.00 1970 -0.50 1550 -1.24 FA GRAV
COMLAB 24 0.45 408 -0.19 45 -0.99 258 -0.67 1982 -0.36 1607 -0.27 FA GRAV
COMLAB 26 1.18 260 -3.00 48 -0.12 238 -2.54 1963 -0.59 1610 -0.21
COMLAB 16 -2.47 264 -3.00 28 -3.00 141 -3.00 1700 -3.00 1287 -3.00 FA GRAV
COMLAB <50 bld 120 -3.00 <50 bld 71 -3.00 1000 -3.00 800 -3.00 AAS
COMLAB 25 0.82 393 -1.07 50 0.45 235 -2.83 1853 -1.93 1537 -1.46 AR AAS
COMLAB 25 0.82 412 0.03 51 0.74 266 0.09 1983 -0.34 1622 -0.01 FA GRAV
COMLAB 21 -0.64 415 0.21 48 -0.12 270 0.47 2058 0.57 1646 0.40 FA GRAV
COMLAB 33 3.00 401 -0.61 52 1.03 258 -0.66 1967 -0.54 1651 0.49 PR,AR AAS
COMLAB 22 -0.25 413 0.09 47 -0.30 276 1.04 2064 0.64 1642 0.33 FA,PR AAS
COMLAB 21 -0.75 434 1.30 48 -0.18 268 0.25 1969 -0.52 1614 -0.15 FA AAS
COMLAB 22 -0.28 409 -0.14 46 -0.70 262 -0.28 2005 -0.08 1587 -0.61 FA AAS
COMLAB 32 3.00 427 0.91 53 1.32 276 1.04 2210 2.42 1760 2.34 FA GRAV
COMLAB 28 1.91 427 0.91 52 1.03 270 0.47 1980 -0.38 1650 0.47 AR AAS
COMLAB 22 -0.28 397 -0.82 47 -0.44 265 -0.04 1942 -0.85 1566 -0.96 FA GRAV
COMLAB 25 0.82 424 0.74 50 0.45 265 0.00 2010 -0.02 1606 -0.28 PR,AR AAS
COMLAB 34 3.00 415 0.21 50 0.45 251 -1.32 2052 0.50 1678 0.95 AR AAS
COMLAB 20 -0.92 450 2.27 58 2.67 283 1.72 2009 -0.03 1638 0.26 PR,AR AAS
COMLAB 25 0.82 442 1.79 57 2.48 276 1.04 2160 1.81 1510 -1.92 ES
COMLAB 20 -1.01 415 0.21 50 0.45 260 -0.47 1900 -1.36 1580 -0.73 PR,AR AAS
COMLAB 25 0.82 419 0.44 43 -1.57 277 1.13 1941 -0.86 1510 -1.92 PR,AR AAS
MINELAB 22 -0.22 410 -0.08 47 -0.33 262 -0.24 2035 0.29 1647 0.42 FA AAS
MINELAB 25 0.82 408 -0.20 49 0.17 263 -0.19 2050 0.47 1638 0.26 FA GRAV
MINELAB 26 1.29 422 0.62 52 0.98 276 1.04 2143 1.61 1715 1.58 FA AAS,GRAV
MINELAB 24 0.30 417 0.31 49 0.23 281 1.52 2101 1.10 1670 0.81 FA GRAV
MINELAB 23 0.09 425 0.80 50 0.35 281 1.53 2099 1.07 1674 0.87 FA GRAV
MINELAB 22 -0.32 382 -1.70 44 -1.19 261 -0.37 1972 -0.48 1596 -0.46 FA GRAV
MINELAB 10 -3.00 206 -3.00 23 -3.00 120 -3.00 843 -3.00 825 -3.00 FA GRAV
MINELAB 15 -2.91 250 -3.00 31 -3.00 175 -3.00 1070 -3.00 1369 -3.00 FA GRAV
MINELAB 27 1.55 420 0.50 49 0.17 260 -0.47 2008 -0.04 1740 2.00 PR,AR AAS
MINELAB 23 0.09 408 -0.20 45 -0.99 261 -0.38 1991 -0.25 1601 -0.37 FA GRAV
MINELAB 23 0.20 423 0.67 48 -0.12 283 1.68 2022 0.13 1602 -0.36
MINELAB 23 0.20 426 0.85 49 0.13 268 0.24 2007 -0.05 1605 -0.30 FA GRAV
MINELAB 20 -1.01 410 -0.08 45 -0.99 259 -0.56 2035 0.29 1645 0.38 PR,AR AAS
MINELAB 23 0.20 420 0.48 49 0.03 259 -0.57 1858 -1.87 1538 -1.44 AD AAS
MINELAB 23 0.09 371 -2.36 57 2.48 222 -3.00 1878 -1.63 1543 -1.37 PR,AR AAS
MINELAB 29 2.28 413 0.06 50 0.45 273 0.71 2065 0.66 1701 1.34 FA GRAV
MINELAB 31 3.00 407 -0.26 54 1.61 291 2.45 2023 0.14 1593 -0.50 AAS
MINELAB 25 0.82 409 -0.14 51 0.74 268 0.28 2154 1.74 1680 0.98 PR,AR AAS
MINELAB 34 3.00 187 -3.00 46 -0.70 143 -3.00 536 -3.00 544 -3.00 PR,AR AAS
MINELAB 11 -3.00 211 -3.00 35 -3.00 130 -3.00 1069 -3.00 1127 -3.00 FA GRAV
MINELAB 20 -0.86 398 -0.81 44 -1.25 268 0.24 1998 -0.17 1636 0.23 FA GRAV
MINELAB 24 0.61 409 -0.17 49 0.08 251 -1.29 1985 -0.32 1545 -1.33 FA GRAV
MINELAB 21 -0.50 401 -0.60 47 -0.56 265 0.04 1977 -0.41 1614 -0.15 AR AAS
MINELAB <50 bld 418 0.36 50 0.41 274 0.85 2082 0.87 1636 0.22 AR AAS
MINELAB 22 -0.35 408 -0.22 46 -0.85 254 -1.04 1978 -0.41 1607 -0.27 AAS
MINELAB 24 0.54 429 1.02 50 0.48 282 1.57 2045 0.41 1677 0.93 AR AAS
MINELAB 23 -0.07 388 -1.34 51 0.78 274 0.87 1808 -2.48 1525 -1.66 AR AAS
MINELAB 23 0.09 417 0.31 47 -0.36 276 1.02 2013 0.03 1613 -0.17 GRAV
MINELAB 21 -0.64 412 0.03 44 -1.28 265 0.00 2000 -0.14 1622 -0.01 FA GRAV
MINELAB 18 -1.74 392 -1.13 36 -3.00 262 -0.28 2035 0.29 1609 -0.23 FA GRAV
MINELAB 22 -0.39 393 -1.06 44 -1.25 251 -1.36 1970 -0.51 1600 -0.39 FA GRAV
MINELAB 17 -2.10 414 0.15 46 -0.70 251 -1.32 2032 0.25 1625 0.04 PR,AR AAS
MINELAB 22 -0.32 408 -0.20 48 -0.14 264 -0.12 2016 0.06 1641 0.31 PR,AR AAS
MINELAB 22 -0.17 407 -0.23 48 -0.10 277 1.10 2087 0.92 1664 0.71 FA GRAV
MINELAB 23 -0.06 418 0.37 46 -0.59 259 -0.56 2044 0.40 1642 0.33 FA GRAV
MINELAB 22 -0.38 413 0.11 46 -0.60 268 0.26 2005 -0.08 1626 0.06 FA GRAV
MINELAB 26 1.18 389 -1.31 49 0.17 249 -1.51 2005 -0.08 1635 0.21 FA GRAV
MINELAB 24 0.45 428 0.97 48 -0.12 268 0.28 1813 -2.42 2095 3.00 PR,AR AAS,DIBK
MINELAB 29 2.28 451 2.31 52 1.03 277 1.13 2097 1.05 1714 1.56 PR AAS
MINELAB <50 bld 110 -3.00 <50 bld 67 -3.00 1020 -3.00 840 -3.00 FA AAS
MINELAB 25 0.86 383 -1.66 52 0.98 269 0.38 2073 0.75 1635 0.21 AAS
MINELAB 20 -1.01 426 0.85 44 -1.28 257 -0.75 2083 0.87 1622 -0.01 FA GRAV
MINELAB 22 -0.20 399 -0.75 47 -0.30 257 -0.73 1917 -1.15 1527 -1.63 PR,AR AAS
MINELAB 22 -0.31 393 -1.09 47 -0.41 254 -1.01 1919 -1.13 1535 -1.50 PR,AR AAS
MINELAB 19 -1.37 393 -1.07 38 -3.00 256 -0.85 1972 -0.48 1563 -1.02 PR,AR AAS
MINELAB 28 1.91 417 0.33 53 1.32 271 0.57 2007 -0.05 1602 -0.35 FA GRAV
MINELAB 21 -0.64 384 -1.60 44 -1.28 248 -1.60 1966 -0.55 1622 -0.01 PR,AR AAS
MINELAB 25 0.82 407 -0.26 47 -0.41 260 -0.47 1940 -0.87 1620 -0.04 PR,AR ES
MINELAB 28 1.91 422 0.62 54 1.61 261 -0.38 2013 0.02 1627 0.08 PR,AR AAS
MINELAB 21 -0.52 418 0.40 49 0.27 268 0.31 2020 0.11 1636 0.24 AR
MINELAB 20 -1.01 409 -0.14 35 -3.00 257 -0.75 1988 -0.28 1788 2.82 FA,GF
MINELAB 20 -1.01 384 -1.60 46 -0.70 246 -1.79 1940 -0.87 1670 0.81 PR,AD AAS
MINELAB 21 -0.64 438 1.55 48 -0.12 275 0.94 2115 1.26 1685 1.07 PR,AR AAS
MINELAB 23 0.09 399 -0.72 49 0.17 259 -0.56 2003 -0.10 1603 -0.33 PR,AR AAS
MINELAB 22 -0.28 440 1.67 49 0.17 270 0.47 2160 1.81 1646 0.40 PR,AR AAS
MINELAB 28 1.77 395 -0.93 60 3.00 255 -0.90 1979 -0.39 1564 -1.01 GRAV
MINELAB 19 -1.37 400 -0.67 51 0.74 272 0.66 1978 -0.41 1546 -1.31 PP XRF
MINELAB 22 -0.44 434 1.30 46 -0.56 277 1.09 2073 0.76 1630 0.12 FA AAS
MINELAB 23 -0.07 436 1.44 48 -0.15 274 0.89 2083 0.87 1677 0.93 PR AAS
MINELAB 21 -0.64 389 -1.31 41 -2.15 252 -1.22 1868 -1.75 1483 -2.38 FA GRAV
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 7
Gold on Carbon Assay - Mean of Absolute Standardized Values - April 2020 Gold on Carbon Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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MINELAB
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-3 -2 -1 0 1 2 3
Zarazma Minerals Studies Company ReportPage 8
Silver on Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBC320-1 GBC320-2 GBC320-3 GBC320-4 GLC320-1 GLC320-2
MEAN (ppm) 14 116 28 76 1002 802
STDEV (ppm) 4 16 8 13 52 31
95% CI (ppm) 1 4 2 4 15 9
95% CI (%) 9.44% 3.88% 7.87% 4.96% 1.47% 1.12% Silver on Carbon Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 8 74 12 46 872 725
MEDIAN (ppm) 13 118 26 79 998 797
MAX (ppm) 23 150 47 111 1134 883
IQR (ppm) 6 21 9 18 58 43
COUNT 40 51 48 50 49 48
Standard Reference GBC320-1 GBC320-2 GBC320-3 GBC320-4 GLC320-1 GLC320-2
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 12 -0.50 121 0.32 22 -0.77 80 0.28 1000 -0.04 793 -0.28 FA GRAV
COMLAB 13 -0.36 133 1.07 27 -0.14 87 0.79 978 -0.47 774 -0.89 4A AAS
COMLAB 36 3.00 26 -3.00 12 -2.07 62 -1.05 836 -3.00 686 -3.00 FA GRAV
COMLAB 13 -0.20 130 0.89 33 0.68 93 1.21 982 -0.39 806 0.11 FA GRAV
COMLAB 13 -0.27 115 -0.05 25 -0.38 79 0.21 997 -0.10 822 0.64 PR,AR AAS
COMLAB 22 1.82 129 0.78 nr nr 83 0.49 996 -0.13 813 0.35 FA GRAV
COMLAB 10 -0.97 124 0.50 15 -1.68 77 0.06 1040 0.73 825 0.73 AR ICP
COMLAB <100 bld 106 -0.61 <100 bld <100 bld 894 -2.07 706 -3.00 FA GRAV
COMLAB 12 -0.50 123 0.44 25 -0.38 80 0.28 883 -2.28 761 -1.30 2A,FA AAS,GRAV
COMLAB 17 0.67 140 1.49 27 -0.12 nr nr 1032 0.57 828 0.83 FA GRAV
COMLAB 21 1.61 406 3.00 44 2.10 265 3.00 1940 3.00 1530 3.00 PR,AR AAS
COMLAB 105 3.00 450 3.00 169 3.00 262 3.00 1170 3.00 857 1.75 FA AAS,GRAV
COMLAB 13 -0.31 127 0.70 27 -0.07 86 0.73 1085 1.59 852 1.59 FA GRAV
COMLAB 13 -0.27 125 0.56 26 -0.25 86 0.73 1041 0.75 846 1.40 AD AAS
COMLAB 17 0.67 100 -0.98 43 1.97 61 -1.13 1021 0.36 818 0.51 AR
COMLAB 11 -0.81 120 0.26 23 -0.65 78 0.10 998 -0.07 805 0.09 AAS
COMLAB 11 -0.74 120 0.26 24 -0.51 79 0.21 980 -0.42 790 -0.38 FA GRAV
COMLAB <50 bld 126 0.63 <50 bld 111 2.58 1181 3.00 823 0.67 FA GRAV
COMLAB 170 3.00 58 -3.00 166 3.00 65 -0.83 1134 2.53 988 3.00
COMLAB <50 bld 450 3.00 72 3.00 260 3.00 2090 3.00 1630 3.00 AAS
COMLAB 10 -0.97 118 0.13 22 -0.77 84 0.58 1032 0.57 791 -0.35 AR AAS
COMLAB <10 bld 137 1.31 35 0.98 91 1.08 1040 0.73 838 1.15 FA,PR AAS
COMLAB 11 -0.74 119 0.19 26 -0.25 81 0.36 >500 ald >500 ald AD AAS
COMLAB nr nr 131 0.94 nr nr 89 0.95 1011 0.17 832 0.95 FA AAS
COMLAB 30 3.00 87 -1.78 37 1.19 88 0.88 951 -0.98 787 -0.47 AR AAS
COMLAB 11 -0.74 104 -0.76 22 -0.78 75 -0.06 968 -0.66 826 0.77 AR ES
COMLAB 23 2.12 100 -0.96 31 0.42 65 -0.85 1163 3.00 914 3.00 PR,AR AAS
COMLAB 10 -0.97 90 -1.59 20 -1.03 55 -1.57 1020 0.34 788 -0.44 PR,AR AAS
COMLAB 11 -0.74 116 0.01 24 -0.51 74 -0.16 1036 0.65 789 -0.41 PR,AR AAS
MINELAB 11 -0.67 118 0.13 23 -0.62 77 0.05 969 -0.64 780 -0.71 PR,AR AAS
MINELAB 14 -0.11 122 0.40 26 -0.20 82 0.42 1000 -0.03 792 -0.32 FA GRAV
MINELAB 53 3.00 127 0.66 20 -1.08 65 -0.80 783 -3.00 528 -3.00 FA GRAV
MINELAB 18 0.91 64 -3.00 52 3.00 51 -1.87 976 -0.50 798 -0.13 PR,AR AAS
MINELAB 8 -1.44 115 -0.05 21 -0.90 80 0.28 960 -0.81 776 -0.82 FA GRAV
MINELAB 13 -0.36 126 0.64 25 -0.41 81 0.39 1004 0.03 803 0.04 3A,FA AAS,GRAV
MINELAB 30 3.00 112 -0.24 26 -0.25 66 -0.75 1099 1.86 859 1.81 PR,AR AAS
MINELAB 69 3.00 111 -0.33 47 2.44 103 1.96 1080 1.50 756 -1.47 AD ICP
MINELAB 157 3.00 272 3.00 404 3.00 196 3.00 1277 3.00 1163 3.00 AAS
MINELAB 12 -0.50 74 -2.58 37 1.19 46 -2.24 1014 0.23 827 0.80 PR,AR AAS
MINELAB 416 3.00 357 3.00 86 3.00 274 3.00 1087 1.63 1130 3.00 PR,AR AAS
MINELAB 746 3.00 489 3.00 105 3.00 553 3.00 1158 2.99 1586 3.00 FA GRAV
MINELAB 19 1.25 125 0.56 30 0.25 84 0.60 953 -0.93 806 0.12 FA GRAV
MINELAB <20 bld 91 -1.53 23 -0.66 59 -1.29 987 -0.28 811 0.28 AR AAS
MINELAB <50 bld 103 -0.77 <50 bld 66 -0.76 1038 0.68 823 0.68 AR AAS
MINELAB 15 0.08 90 -1.57 24 -0.49 72 -0.28 1038 0.69 795 -0.21 AAS
MINELAB 10 -0.97 105 -0.64 22 -0.73 61 -1.14 1092 1.72 883 2.57 AR AAS
MINELAB 20 1.29 97 -1.19 36 1.03 70 -0.44 1666 3.00 787 -0.48 AR AAS
MINELAB 21 1.61 145 1.80 42 1.84 98 1.62 978 -0.46 780 -0.70 FA GRAV
MINELAB 11 -0.74 126 0.63 24 -0.51 85 0.65 1032 0.57 828 0.83 FA GRAV
MINELAB 53 3.00 150 2.12 29 0.16 137 3.00 975 -0.52 780 -0.68 FA GRAV
MINELAB 22 1.85 76 -2.46 28 0.02 49 -2.01 982 -0.38 725 -2.44 AR AAS
MINELAB 30 3.00 123 0.44 42 1.81 118 3.00 1002 0.01 832 0.96 PR,AR AAS
MINELAB 13 -0.27 118 0.13 24 -0.51 76 -0.01 978 -0.46 777 -0.79 FA GRAV
MINELAB <50 bld 400 3.00 65 3.00 280 3.00 2070 3.00 1540 3.00 FA AAS
MINELAB 10 -0.95 102 -0.85 22 -0.74 68 -0.58 872 -2.49 707 -3.00 AAS
MINELAB 18 0.91 127 0.69 35 0.93 80 0.28 1010 0.15 790 -0.38 FA GRAV
MINELAB 12 -0.46 117 0.05 26 -0.31 80 0.25 963 -0.75 773 -0.92 3A AAS
MINELAB 13 -0.39 117 0.06 26 -0.30 80 0.29 964 -0.73 777 -0.81 3A AAS
MINELAB 22 1.96 106 -0.63 26 -0.19 58 -1.32 1034 0.61 801 -0.04 AR
MINELAB 32 3.00 128 0.75 41 1.71 93 1.25 939 -1.21 731 -2.25 PP XRF
MINELAB 11 -0.77 114 -0.12 23 -0.64 71 -0.36 997 -0.10 777 -0.78 PR AAS
MINELAB 11 -0.75 129 0.79 25 -0.38 84 0.60 992 -0.20 791 -0.34 PR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 9
Silver on Carbon Assay - Mean of Absolute Standardized Values - April 2020 Silver on Carbon Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
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Zarazma Minerals Studies Company ReportPage 10
Silver (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 1.9 27.1 11.5 0.5 0.6 1.4 2.7 4.4 6.9 6.2
STDEV (ppm) 0.3 1.1 0.6 0.1 0.1 0.2 0.2 0.4 0.5 0.5
95% CI (ppm) 0.1 0.3 0.1 0.0 0.0 0.1 0.0 0.1 0.1 0.1
95% CI (%) 4.38% 1.08% 1.26% 6.52% 7.24% 3.61% 1.78% 2.09% 1.66% 2.02% Silver Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 1.2 24.8 10.3 0.3 0.4 1.0 2.3 3.8 6.0 5.0
MEDIAN (ppm) 1.8 27.0 11.5 0.5 0.6 1.4 2.7 4.3 7.0 6.2
MAX (ppm) 2.6 29.2 13.0 0.7 0.9 1.9 3.1 5.3 8.0 7.5
IQR (ppm) 0.3 1.5 0.8 0.1 0.2 0.2 0.3 0.4 0.4 0.5
COUNT 53 52 58 34 36 52 54 58 60 60
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 1.7 -0.51 25.4 -1.62 12.2 1.17 0.5 0.25 0.5 -0.76 1.5 0.45 2.6 -0.76 4.4 0.10 7.0 0.13 6.4 0.37 4A ES
COMLAB 1.9 0.16 29.1 1.85 11.3 -0.44 0.6 1.34 0.8 1.53 1.7 1.52 2.8 0.34 4.0 -1.03 6.9 -0.09 5.8 -0.84 4A ICP
COMLAB 2.0 0.50 29.0 1.75 11.2 -0.62 0.5 0.25 0.8 1.53 1.6 0.99 2.7 -0.21 4.6 0.67 7.2 0.58 6.3 0.17 4A ICP
COMLAB 1.9 0.16 22.6 -3.00 11.2 -0.62 0.4 -0.85 0.7 0.77 1.6 0.99 2.9 0.89 4.2 -0.46 7.0 0.13 6.2 -0.03 4A ICP
COMLAB 2.1 0.83 27.3 0.16 12.2 1.17 <1.0 bld <1.0 bld 2.0 3.00 3.4 3.00 5.2 2.38 7.7 1.69 7.2 2.00 4A ES
COMLAB 2.4 1.84 27.9 0.72 12.0 0.81 <0.5 bld <0.5 bld 1.5 0.45 2.6 -0.76 4.0 -1.03 6.7 -0.53 5.5 -1.45 4A ES
COMLAB 1.6 -0.84 27.3 0.16 11.8 0.45 0.5 0.25 0.5 -0.76 1.5 0.45 2.7 -0.21 4.6 0.67 7.0 0.13 6.4 0.37 4A ES
COMLAB 2.0 0.50 27.8 0.63 11.2 -0.62 <0.5 bld 0.6 0.01 1.4 -0.09 2.8 0.34 4.3 -0.18 7.0 0.13 6.4 0.37 4A ES
COMLAB 1.9 0.16 25.5 -1.52 12.0 0.81 0.6 1.34 0.7 0.77 1.5 0.45 2.7 -0.21 5.0 1.81 6.9 -0.09 7.3 2.20 4A ES
COMLAB 1.3 -1.85 27.1 -0.03 12.0 0.81 <0.5 bld 0.7 0.77 1.6 0.99 3.0 1.44 4.0 -1.03 7.0 0.13 6.4 0.37 4A ES
COMLAB 1.7 -0.51 30.5 3.00 11.5 -0.09 <0.5 bld 0.5 -0.76 1.2 -1.16 2.6 -0.76 4.5 0.39 6.6 -0.75 6.3 0.17 4A ES
COMLAB 1.8 -0.17 28.1 0.91 12.1 0.99 <0.5 bld <0.5 bld 1.4 -0.09 2.8 0.34 4.2 -0.46 7.3 0.80 6.4 0.37 4A ICP
COMLAB 1.6 -0.84 28.4 1.19 11.6 0.09 <0.5 bld <0.5 bld 1.4 -0.09 3.0 1.44 4.4 0.10 6.8 -0.31 6.9 1.39 4A ES
COMLAB 3.0 3.00 28.0 0.82 11.0 -0.98 <1.0 bld <1.0 bld 2.0 3.00 3.0 1.44 5.0 1.81 6.0 -2.08 6.0 -0.44 4A ES
COMLAB 2.2 1.17 26.9 -0.21 12.0 0.81 0.7 2.44 <0.5 bld 1.3 -0.62 2.7 -0.21 4.1 -0.75 7.1 0.36 6.4 0.37 4A ES
COMLAB 2.0 0.50 27.7 0.54 11.6 0.09 <0.5 bld 0.6 0.01 1.4 -0.09 2.8 0.34 4.5 0.39 7.2 0.58 6.2 -0.03 4A ES
COMLAB 1.5 -1.18 26.7 -0.40 11.4 -0.27 0.5 0.25 0.5 -0.76 1.4 -0.09 2.6 -0.76 4.2 -0.46 6.8 -0.31 6.0 -0.44 4A ES
COMLAB 1.7 -0.51 26.6 -0.49 11.6 0.09 0.6 1.34 <0.5 bld 1.4 -0.09 2.7 -0.21 4.0 -1.03 6.5 -0.98 6.0 -0.44 4A ES
COMLAB <0.5 -3.00 27.3 0.16 11.2 -0.62 <0.5 bld <0.5 bld 1.2 -1.16 2.7 -0.21 5.3 2.66 6.4 -1.20 6.3 0.17 4A ES
COMLAB 1.6 -0.78 27.2 0.07 11.9 0.54 0.4 -0.74 0.5 -0.76 1.4 -0.25 2.7 -0.21 4.8 1.24 7.2 0.64 6.1 -0.15 4A MS
COMLAB 2.6 2.37 29.2 1.93 11.8 0.50 0.6 1.67 0.9 1.91 1.7 1.52 3.0 1.55 4.5 0.27 7.1 0.31 6.2 -0.11 5A ES
COMLAB 1.8 -0.23 26.7 -0.40 11.5 -0.07 0.5 -0.16 0.5 -0.90 1.3 -0.65 2.7 -0.39 4.2 -0.41 6.7 -0.59 5.8 -0.75 4A ICP
COMLAB 1.8 -0.17 26.4 -0.68 10.4 -2.06 0.4 -0.85 0.6 0.01 1.4 -0.09 2.8 0.34 4.2 -0.46 7.0 0.13 5.6 -1.25 4A MS
COMLAB <5.0 bld 27.0 -0.12 11.0 -0.98 <5.0 bld <5.0 bld <5.0 bld <5.0 bld <5.0 bld 7.0 0.13 6.7 0.98 NAA
COMLAB 2.0 0.50 26.5 -0.59 11.2 -0.62 0.4 -0.85 0.5 -0.76 1.5 0.45 2.7 -0.21 4.4 0.10 7.0 0.13 6.1 -0.23 4A MS
COMLAB 1.6 -0.94 28.2 1.04 11.2 -0.68 0.4 -0.63 0.6 -0.38 1.5 0.56 3.0 1.33 4.7 0.87 6.6 -0.75 6.8 1.08 4A MS
COMLAB 1.8 -0.17 26.8 -0.31 11.2 -0.62 <1.0 bld <1.0 bld 1.4 -0.09 3.0 1.44 4.3 -0.18 6.6 -0.75 6.2 -0.03 4A ES
COMLAB 2.0 0.50 27.0 -0.12 12.0 0.81 <1.0 bld <1.0 bld 1.0 -2.23 3.0 1.44 4.0 -1.03 7.0 0.13 6.0 -0.44 4A ICP
COMLAB 1.8 -0.17 26.6 -0.49 11.4 -0.27 0.5 0.25 0.6 0.01 1.3 -0.62 3.0 1.44 4.3 -0.18 6.9 -0.09 6.4 0.37 4A AAS
COMLAB <1.0 bld 26.2 -0.87 11.4 -0.27 <1.0 bld <1.0 bld 1.2 -1.16 2.5 -1.31 3.9 -1.32 6.8 -0.31 5.8 -0.84 3A,MICR ES
COMLAB 1.5 -1.18 26.0 -1.06 10.4 -2.06 0.5 0.25 0.6 0.01 1.4 -0.09 2.6 -0.76 3.9 -1.32 6.1 -1.86 5.6 -1.25 4A AAS
COMLAB 1.9 0.16 27.2 0.07 12.2 1.17 <0.5 bld <0.5 bld 1.1 -1.70 2.7 -0.21 4.2 -0.46 7.1 0.36 6.7 0.98 4A ES
COMLAB 1.7 -0.51 26.4 -0.68 11.2 -0.62 0.4 -0.85 0.4 -1.52 1.4 -0.09 2.4 -1.86 4.1 -0.75 6.8 -0.42 5.7 -1.05 4A MS
COMLAB 1.5 -1.18 27.0 -0.12 12.2 1.17 0.5 0.25 <0.5 bld 1.2 -1.16 2.4 -1.86 4.3 -0.18 6.6 -0.75 6.3 0.17 4A ES
COMLAB 1.8 -0.21 27.5 0.37 11.3 -0.52 0.5 -0.30 0.5 -0.61 1.4 0.07 2.7 0.01 4.4 0.10 7.1 0.42 6.6 0.84 4A MS
COMLAB 2.0 0.50 28.9 1.66 12.2 1.17 0.5 0.25 0.6 0.01 1.5 0.45 2.8 0.34 4.4 0.10 7.2 0.58 7.2 2.00 4A MS
COMLAB 1.7 -0.51 28.0 0.82 11.7 0.27 0.5 0.25 0.5 -0.76 1.5 0.45 2.9 0.89 4.5 0.39 7.2 0.58 6.6 0.78 4A ICP
COMLAB 1.3 -1.81 28.4 1.19 10.9 -1.16 0.3 -1.83 0.4 -1.22 1.3 -0.68 2.6 -0.65 4.2 -0.41 7.1 0.25 5.9 -0.58 4A AAS
COMLAB 2.1 0.73 26.0 -1.08 11.2 -0.66 0.4 -0.41 0.5 -0.53 1.4 0.02 2.6 -0.71 4.2 -0.55 6.8 -0.35 6.3 0.21 4A MS
COMLAB 2.1 0.70 29.2 1.94 11.5 -0.09 <1.0 bld <1.0 bld 1.7 1.25 2.9 1.06 4.4 0.19 7.1 0.29 5.6 -1.25 4A ES
COMLAB 2.0 0.50 23.0 -3.00 11.0 -0.98 1.0 3.00 1.0 3.00 2.0 3.00 3.0 1.44 4.0 -1.03 8.0 2.35 6.0 -0.44 4A ES
COMLAB 1.6 -0.84 26.0 -1.06 11.0 -0.98 0.4 -0.85 0.6 0.01 1.4 -0.09 2.6 -0.76 4.1 -0.75 6.4 -1.20 6.1 -0.23 4A ICP
COMLAB 3.0 3.00 28.0 0.82 11.0 -0.98 <1.0 bld <1.0 bld 1.0 -2.23 4.0 3.00 5.0 1.81 8.0 2.35 6.0 -0.44 4A AAS
COMLAB 1.6 -0.71 24.8 -2.16 10.6 -1.64 0.4 -0.96 0.5 -0.83 1.3 -0.79 2.5 -1.20 4.1 -0.69 6.5 -1.06 6.4 0.39 4A MS
COMLAB 2.2 1.17 26.6 -0.49 12.5 1.70 1.1 3.00 0.8 1.53 1.5 0.45 2.8 0.34 4.5 0.39 7.5 1.24 6.6 0.78 4A ES
COMLAB 2.2 1.17 20.0 -3.00 12.0 0.83 0.4 -0.85 1.3 3.00 3.1 3.00 3.6 3.00 6.5 3.00 7.0 0.11 6.6 0.78 4A AAS
COMLAB 1.2 -2.18 14.8 -3.00 11.0 -0.98 <0.5 bld <0.5 bld 1.3 -0.62 2.6 -0.76 4.1 -0.75 6.7 -0.53 6.0 -0.44 4A AAS
COMLAB 2.0 0.50 26.0 -1.06 12.0 0.81 <1.0 bld <1.0 bld <1.0 bld 3.0 1.44 4.0 -1.03 6.0 -2.08 5.0 -2.47 4A AAS
COMLAB 1.7 -0.51 26.9 -0.21 10.3 -2.23 <0.3 bld 0.5 -0.76 1.3 -0.62 2.7 -0.21 4.2 -0.46 6.8 -0.31 5.8 -0.84 4A AAS
COMLAB 2.0 0.50 26.2 -0.87 11.8 0.45 0.6 1.34 0.8 1.53 1.7 1.52 3.4 3.00 5.0 1.81 7.9 2.13 6.3 0.17 4A ES
COMLAB 1.6 -0.98 22.9 -3.00 9.6 -3.00 0.5 0.11 0.7 0.88 1.3 -0.36 2.3 -2.27 3.8 -1.57 6.1 -1.92 5.1 -2.31 4A MS
COMLAB 2.3 1.50 29.0 1.75 11.8 0.45 <0.5 bld 0.9 2.29 1.8 2.06 3.1 1.99 5.0 1.81 7.4 1.02 7.5 2.61 4A ES
COMLAB <2.0 bld 26.5 -0.59 12.3 1.35 <2.0 bld <2.0 bld <2.0 bld 2.7 -0.49 4.9 1.38 6.7 -0.47 5.9 -0.66 4A ES
COMLAB 1.8 -0.31 25.0 -1.99 13.0 2.60 0.4 -0.52 0.5 -0.76 1.4 -0.03 2.6 -0.76 4.2 -0.46 6.9 0.00 5.9 -0.62 4A ES
COMLAB 1.3 -1.85 nr nr 11.8 0.45 0.3 -1.94 0.4 -1.52 1.2 -1.16 2.6 -0.76 4.1 -0.75 6.4 -1.20 5.3 -1.86 4A ES
COMLAB 1.9 0.16 28.0 0.82 11.7 0.27 <1.0 bld <1.0 bld 1.2 -1.16 2.6 -0.76 4.4 0.10 7.1 0.36 6.7 0.98 4A ES
COMLAB 2.3 1.50 27.1 -0.03 11.1 -0.80 0.5 0.25 0.7 0.77 1.6 0.99 2.7 -0.21 4.3 -0.18 6.8 -0.31 6.5 0.58 4A AAS
MINELAB 3.7 3.00 13.0 -3.00 12.3 1.29 1.4 3.00 1.0 3.00 1.9 2.81 3.4 3.00 4.7 1.07 7.8 1.95 6.7 0.94 4A
MINELAB 5.2 3.00 55.6 3.00 21.5 3.00 0.4 -0.85 1.3 3.00 2.6 3.00 5.1 3.00 7.9 3.00 12.8 3.00 12.2 3.00 4A ES
MINELAB 2.5 2.17 27.4 0.26 25.7 3.00 10.2 3.00 <2.0 bld 3.4 3.00 2.8 0.34 3.9 -1.32 6.4 -1.20 5.8 -0.84 FA GRAV
MINELAB 1.8 -0.17 27.0 -0.12 12.2 1.17 0.6 1.34 0.6 0.01 1.5 0.45 3.0 1.44 4.5 0.39 7.1 0.36 6.2 -0.03 4A ES
MINELAB 2.0 0.50 26.0 -1.06 11.2 -0.62 <1.0 bld <1.0 bld 1.4 -0.09 2.5 -1.31 4.3 -0.18 7.7 1.69 6.8 1.19 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted material. These results do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 11
Silver Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Silver Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
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Zarazma Minerals Studies Company ReportPage 12
Silver (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 1.3 11.3 10.9 0.4 0.5 1.4 2.7 4.3 6.9 6.3
STDEV (ppm) 0.2 1.0 0.7 0.1 0.1 0.2 0.2 0.3 0.3 0.4
95% CI (ppm) 0.1 0.2 0.2 0.0 0.0 0.0 0.0 0.1 0.1 0.1
95% CI (%) 4.52% 2.18% 1.55% 8.94% 6.43% 3.28% 1.82% 1.49% 1.12% 1.48% Silver Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 0.9 9.3 9.4 0.2 0.3 1.0 2.3 3.9 6.1 5.6
MEDIAN (ppm) 1.4 11.1 11.0 0.4 0.5 1.4 2.7 4.3 6.9 6.3
MAX (ppm) 1.8 14.0 12.3 0.5 0.7 1.8 3.2 4.9 7.7 7.0
IQR (ppm) 0.3 1.3 0.8 0.1 0.1 0.2 0.3 0.3 0.3 0.5
COUNT 46 64 64 33 38 54 57 59 60 61
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 1.6 1.28 12.3 0.96 10.5 -0.62 0.4 0.49 0.5 -0.07 1.4 0.23 2.7 -0.16 4.6 1.02 6.9 0.06 6.4 0.22 AR ICP
COMLAB 1.4 0.31 14.0 2.65 10.5 -0.62 0.4 0.49 0.6 0.91 1.4 0.23 2.5 -1.21 4.3 -0.18 6.8 -0.27 6.2 -0.32 AR ICP
COMLAB 1.4 0.31 12.4 1.06 10.7 -0.32 0.4 0.49 0.5 -0.07 1.4 0.23 2.8 0.37 4.4 0.22 7.1 0.72 6.4 0.22 AR ICP
COMLAB 1.5 0.80 13.1 1.75 9.7 -1.78 0.7 3.00 0.7 1.90 1.6 1.44 3.1 1.95 4.6 1.02 7.1 0.72 6.9 1.57 AR ES
COMLAB 1.5 0.80 11.9 0.56 11.6 0.99 0.4 0.49 0.5 -0.07 1.4 0.23 2.8 0.37 4.7 1.41 7.0 0.39 6.9 1.57 AR ES
COMLAB 1.5 0.80 10.7 -0.64 11.5 0.84 0.3 -0.60 0.5 -0.07 1.5 0.84 2.9 0.89 4.5 0.62 6.9 0.06 6.8 1.30 AR ES
COMLAB 1.3 -0.17 10.8 -0.54 11.4 0.70 0.5 1.58 0.5 -0.07 1.5 0.84 2.7 -0.16 4.4 0.22 7.0 0.39 6.8 1.30 AR ES
COMLAB 1.8 2.25 10.5 -0.84 11.9 1.43 0.3 -0.60 0.4 -1.06 1.4 0.23 2.7 -0.16 4.2 -0.58 7.0 0.39 6.2 -0.32 AR ICP
COMLAB 1.5 0.80 10.9 -0.44 10.8 -0.18 0.3 -0.60 0.4 -1.06 1.5 0.84 2.6 -0.69 4.3 -0.18 6.9 0.06 6.6 0.76 AR ES
COMLAB 1.3 -0.17 11.2 -0.14 11.0 0.11 0.3 -0.60 0.5 -0.07 1.3 -0.37 2.7 -0.16 4.3 -0.18 6.7 -0.60 6.2 -0.32 AR ES
COMLAB <0.2 -3.00 10.4 -0.94 11.0 0.11 <0.2 bld 0.3 -2.05 1.2 -0.97 2.6 -0.69 4.3 -0.18 6.7 -0.60 6.1 -0.59 AR ES
COMLAB 1.1 -1.14 10.4 -0.94 11.2 0.40 0.2 -1.69 0.5 -0.07 1.4 0.23 2.7 -0.16 4.0 -1.38 6.8 -0.27 6.3 -0.05 AR ES
COMLAB 1.4 0.31 10.7 -0.64 10.7 -0.32 nr nr nr nr 1.4 0.23 2.6 -0.69 4.1 -0.98 6.7 -0.60 6.2 -0.32 AR AAS
COMLAB 1.3 -0.17 10.4 -0.94 10.9 -0.03 0.3 -0.60 0.4 -1.06 1.3 -0.37 2.6 -0.69 4.3 -0.18 6.7 -0.60 6.1 -0.59 AR AAS
COMLAB 1.4 0.31 10.3 -1.04 12.2 1.86 0.5 1.58 0.6 0.91 1.5 0.84 2.8 0.37 4.4 0.22 7.2 1.05 6.5 0.49 AR ES
COMLAB 1.7 1.67 10.4 -0.99 10.7 -0.40 0.4 0.49 0.5 0.22 1.5 0.60 2.8 0.21 4.3 -0.26 7.0 0.22 6.1 -0.51 AR MS
COMLAB 1.4 0.46 9.4 -1.90 10.3 -0.92 0.5 1.36 0.6 1.21 1.4 -0.01 2.6 -0.48 4.2 -0.50 6.6 -1.09 5.8 -1.46 AR ES
COMLAB 1.6 1.35 11.5 0.13 11.4 0.73 0.3 -0.37 0.5 -0.01 1.4 0.29 2.7 -0.23 4.7 1.35 7.2 1.19 6.4 0.32 AR ICP
COMLAB <0.3 -3.00 10.2 -1.14 11.6 0.99 <0.3 bld <0.3 bld 1.0 -2.18 2.3 -2.27 4.4 0.22 6.8 -0.27 5.7 -1.67 AR ES
COMLAB 1.1 -1.06 10.7 -0.63 10.0 -1.39 0.4 0.45 0.4 -0.79 1.5 0.63 2.6 -0.78 4.9 2.18 6.8 -0.30 6.2 -0.40 AR MS
COMLAB 1.5 0.80 25.5 3.00 11.0 0.11 0.5 1.58 0.5 -0.07 1.5 0.84 3.0 1.42 4.5 0.62 7.0 0.39 6.5 0.49 AR MS
COMLAB 1.1 -1.04 8.1 -3.00 8.2 -3.00 0.2 -1.26 0.3 -2.25 1.0 -2.18 2.0 -3.00 3.1 -3.00 5.0 -3.00 4.4 -3.00 AR,MICR ES
COMLAB <1.0 bld <1.0 -3.00 17.2 3.00 3.8 3.00 <1.0 bld <1.0 bld <1.0 -3.00 <1.0 -3.00 <1.0 -3.00 <1.0 -3.00 AR AAS
COMLAB 1.2 -0.66 13.1 1.75 11.9 1.43 <0.5 bld <0.5 bld 1.2 -0.97 2.6 -0.69 4.2 -0.58 6.8 -0.27 6.3 -0.05 AR MS
COMLAB 1.0 -1.43 10.2 -1.14 10.3 -0.91 0.3 -0.82 0.4 -0.96 1.3 -0.55 2.5 -1.16 3.9 -1.82 6.5 -1.36 5.8 -1.35 AR AAS
COMLAB 1.4 0.26 10.5 -0.86 10.9 -0.06 0.4 0.05 0.5 0.12 1.4 -0.01 2.8 0.31 4.2 -0.66 6.8 -0.34 5.7 -1.59 AR MS
COMLAB 2.3 3.00 10.9 -0.44 10.6 -0.47 <1.0 bld <1.0 bld 1.6 1.44 2.7 -0.16 4.3 -0.18 6.8 -0.27 6.2 -0.32 AR ES
COMLAB 1.4 0.41 11.7 0.33 11.2 0.46 0.4 0.27 0.6 0.42 1.5 0.66 3.0 1.21 4.9 2.05 7.2 0.98 6.5 0.36 AR MS
COMLAB 1.6 1.28 11.9 0.56 12.3 2.01 0.9 3.00 0.4 -1.06 1.3 -0.37 2.6 -0.69 4.3 -0.18 7.2 1.05 6.4 0.22 AR ES
COMLAB 1.6 1.28 12.0 0.66 9.4 -2.22 0.5 1.58 0.7 1.90 1.5 0.84 2.7 -0.16 4.4 0.22 6.3 -1.92 5.7 -1.67 AR AAS
COMLAB 0.5 -3.00 15.0 3.00 11.2 0.40 0.7 3.00 0.7 1.90 1.8 2.65 3.0 1.42 4.2 -0.58 6.8 -0.27 7.8 3.00 1A ICP
COMLAB 1.3 -0.17 11.1 -0.24 11.3 0.55 0.4 0.49 0.7 1.41 1.5 0.84 2.6 -0.69 4.4 0.22 6.8 -0.27 6.8 1.30 AR AAS
COMLAB 1.3 -0.03 11.2 -0.14 11.1 0.26 <0.3 bld 0.5 -0.17 1.5 0.60 2.9 0.79 4.5 0.66 7.2 1.18 6.7 0.92 3A AAS
COMLAB 1.2 -0.90 11.2 -0.13 9.7 -1.80 0.5 1.47 0.7 1.90 1.4 0.17 2.6 -0.90 4.4 0.14 7.0 0.32 6.6 0.63 2A AAS
COMLAB 1.2 -0.66 10.0 -1.34 9.6 -1.93 0.3 -0.60 1.1 3.00 2.0 3.00 3.3 3.00 4.8 1.81 6.7 -0.60 6.4 0.22 AR MS
COMLAB 1.5 0.80 11.2 -0.14 9.4 -2.22 0.4 0.49 0.5 -0.07 1.4 0.23 2.8 0.37 4.1 -0.98 6.1 -2.58 9.0 3.00 AR ES
COMLAB <2.0 bld 11.6 0.22 11.5 0.77 <2.0 bld <2.0 bld <2.0 bld 2.7 -0.37 4.4 0.26 6.6 -0.93 5.6 -1.89 AR ES
COMLAB 1.0 -1.62 11.7 0.36 11.5 0.84 0.3 -0.60 0.4 -1.06 1.2 -0.97 2.5 -1.21 4.0 -1.38 6.4 -1.59 5.9 -1.13 AR ES
COMLAB 1.4 0.31 11.6 0.26 11.4 0.70 0.3 -0.60 0.5 -0.07 1.5 0.84 2.8 0.37 4.4 0.22 7.1 0.72 6.8 1.30 AR AAS
COMLAB 1.3 -0.17 11.0 -0.34 10.8 -0.18 <1.0 bld <1.0 bld 1.4 0.23 2.7 -0.16 4.2 -0.58 6.9 0.06 6.3 -0.05 AR ES
COMLAB 2.0 3.00 13.0 1.65 10.0 -1.35 <0.5 bld 1.0 3.00 1.0 -2.18 3.0 1.42 4.0 -1.38 7.0 0.39 6.0 -0.86 3A ICP
COMLAB 1.4 0.31 11.1 -0.24 8.6 -3.00 0.4 0.49 0.5 -0.07 1.4 0.23 2.6 -0.69 4.2 -0.58 6.4 -1.59 6.2 -0.32 AR AAS
MINELAB 1.1 -1.00 12.3 0.96 10.6 -0.54 0.3 -0.16 0.5 -0.47 1.4 -0.07 2.7 -0.27 4.2 -0.54 6.9 0.16 6.3 0.00 AR AAS
MINELAB 0.9 -2.35 10.9 -0.49 9.8 -1.71 0.3 -0.60 0.5 -0.37 1.4 -0.07 2.6 -0.90 4.3 -0.14 7.0 0.29 6.4 0.19 AR AAS
MINELAB <5.0 bld 12.0 0.66 11.0 0.11 <5.0 bld <5.0 bld <5.0 bld <5.0 bld <5.0 bld 7.0 0.39 7.0 1.85 3A AAS
MINELAB <2.0 bld 10.6 -0.73 9.4 -2.29 <2.0 bld 20.6 3.00 <2.0 bld 0.9 -3.00 2.4 -3.00 3.1 -3.00 3.5 -3.00 AR ICP
MINELAB 7.2 3.00 13.7 2.36 8.6 -3.00 4.1 3.00 3.1 3.00 4.1 3.00 5.5 3.00 15.8 3.00 10.3 3.00 6.5 0.52 AR AAS
MINELAB 1.1 -1.14 10.7 -0.64 10.7 -0.32 0.2 -1.69 0.4 -1.06 1.4 0.23 2.6 -0.69 4.2 -0.58 6.8 -0.27 6.0 -0.86 AR AAS
MINELAB <2.0 bld 14.5 3.00 10.9 -0.03 <2.0 bld <2.0 bld <2.0 bld 2.8 0.37 4.7 1.41 6.8 -0.27 6.3 -0.05 3A AAS
MINELAB <10.0 bld 12.0 0.66 11.0 0.11 <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld 3A AAS
MINELAB 7.0 3.00 7.0 -3.00 7.0 -3.00 1.0 3.00 <1.0 bld <1.0 bld <1.0 -3.00 0.4 -3.00 2.0 -3.00 0.3 -3.00 3A ES
MINELAB 5.0 3.00 12.0 0.66 14.0 3.00 <3.0 bld <3.0 bld <3.0 bld 6.0 3.00 6.0 3.00 8.0 3.00 8.0 3.00 AR AAS
MINELAB 1.2 -0.66 12.4 1.06 10.1 -1.20 <1.0 bld <1.0 bld 1.0 -2.18 2.3 -2.27 4.1 -0.98 6.4 -1.59 6.0 -0.86 ICP
MINELAB <1.0 bld 15.0 3.00 11.0 0.11 <1.0 bld 2.0 3.00 2.0 3.00 3.0 1.42 3.0 -3.00 5.0 -3.00 8.0 3.00 3A AAS
MINELAB 1.0 -1.62 13.0 1.65 12.0 1.57 <1.0 bld 1.0 3.00 1.0 -2.18 3.0 1.42 4.0 -1.38 7.0 0.39 7.0 1.85 AR AAS
MINELAB nr nr 7.0 -3.00 13.0 3.00 1.0 3.00 1.0 3.00 1.0 -2.18 3.0 1.42 7.0 3.00 9.0 3.00 7.0 1.85 AR AAS
MINELAB 1.5 0.60 10.9 -0.44 11.3 0.48 <0.5 bld <0.5 bld 1.3 -0.67 2.9 0.68 4.2 -0.74 6.8 -0.20 6.1 -0.51 AR ES
MINELAB 1.6 1.43 11.6 0.28 11.1 0.19 <1.0 bld <1.0 bld 1.4 -0.01 2.6 -0.53 4.4 0.22 7.4 1.71 6.6 0.71 AR MS
MINELAB 2.2 3.00 11.1 -0.29 10.7 -0.27 <1.0 bld <1.0 bld 1.3 -0.25 2.7 -0.27 3.9 -1.74 7.0 0.49 5.6 -1.89 AR ES
MINELAB <3.0 bld 11.8 0.43 11.3 0.57 <3.0 bld <3.0 bld <3.0 bld <3.0 bld 4.1 -1.18 6.6 -1.03 5.9 -1.16 AR ES
MINELAB 1.1 -1.14 10.8 -0.54 11.6 0.99 0.3 -0.60 0.5 -0.07 1.3 -0.37 2.9 0.89 4.3 -0.18 7.1 0.72 6.0 -0.86 AR ES
MINELAB 0.7 -3.00 12.8 1.50 11.2 0.33 0.2 -1.69 0.6 0.42 1.5 0.84 2.8 0.37 4.6 0.82 6.5 -1.29 6.4 0.22 AR AAS
MINELAB 2.1 3.00 9.3 -2.04 11.4 0.70 1.1 3.00 0.9 3.00 1.9 3.00 3.3 3.00 5.4 3.00 7.7 2.70 6.7 1.03 AR ES
MINELAB <0.1 -3.00 11.2 -0.17 13.8 3.00 0.7 3.00 <0.1 -3.00 <0.1 -3.00 0.7 -3.00 2.4 -3.00 4.1 -3.00 1.8 -3.00 AR ES
MINELAB 1.5 0.75 10.6 -0.74 10.8 -0.18 <0.5 bld 0.5 0.22 1.5 0.84 2.9 0.79 4.3 -0.26 6.7 -0.63 6.3 0.03 AR AAS
MINELAB <0.1 -3.00 11.5 0.19 11.7 1.18 1.3 3.00 2.8 3.00 1.5 0.53 3.1 1.79 4.8 1.73 7.8 3.00 5.6 -1.86 AR ICP
MINELAB 1.3 -0.17 11.9 0.56 10.7 -0.32 bld bld bld bld 1.5 0.84 2.5 -1.21 4.0 -1.38 7.0 0.39 6.3 -0.05 AR AAS
MINELAB 4.3 3.00 10.7 -0.64 11.4 0.70 <2.0 bld <2.0 bld 2.3 3.00 3.3 3.00 4.7 1.41 7.4 1.71 6.6 0.76 3A AAS
MINELAB 4.0 3.00 10.5 -0.84 11.2 0.40 <2.0 bld <2.0 bld <2.0 bld 3.2 2.47 4.6 1.02 7.2 1.05 6.5 0.49 3A AAS
MINELAB 1.2 -0.66 13.3 1.95 11.1 0.26 <0.5 bld <0.5 bld 1.3 -0.37 2.6 -0.69 4.8 1.81 7.4 1.71 6.8 1.30 3A AAS
MINELAB 1.4 0.31 10.5 -0.84 11.2 0.40 <1.0 bld <1.0 bld 1.4 0.23 2.5 -1.21 4.0 -1.38 6.6 -0.93 6.2 -0.32 AR AAS
MINELAB <5.0 bld 11.7 0.36 10.9 -0.03 <5.0 bld <5.0 bld <5.0 bld <5.0 bld <5.0 bld 5.4 -3.00 5.0 -3.00 AR ICP
MINELAB 4.5 3.00 11.0 -0.34 11.0 0.11 2.0 3.00 1.8 3.00 2.0 3.00 3.4 3.00 4.5 0.54 7.5 1.97 6.8 1.41 AR AAS
MINELAB 1.2 -0.75 10.5 -0.81 11.8 1.22 0.2 -1.37 0.5 -0.27 1.4 0.17 2.7 0.05 4.4 0.38 6.8 -0.43 6.6 0.84 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted material. These results do not contribute to the error charts.
Method Reading
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Zarazma Minerals Studies Company Report Page 13
Silver Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Silver Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
0 1 2
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Zarazma Minerals Studies Company ReportPage 14
Copper (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 872 117 2718 3238 1259 2702 4445 6686 3392 1531
STDEV (ppm) 45 6 91 116 33 76 126 125 90 60
95% CI (ppm) 11 2 23 29 9 19 32 34 24 15
95% CI (%) 1.29% 1.37% 0.84% 0.90% 0.68% 0.72% 0.72% 0.51% 0.70% 0.99% Copper Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 778 106 2500 2920 1181 2550 4184 6455 3160 1389
MEDIAN (ppm) 874 116 2725 3240 1260 2703 4450 6700 3409 1530
MAX (ppm) 986 134 2954 3500 1350 2900 4790 6950 3632 1690
IQR (ppm) 68 7 132 143 41 89 182 181 121 87
COUNT 62 59 62 61 59 60 60 53 56 61
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 901 0.65 111 -0.99 2718 0.00 3152 -0.75 1256 -0.09 2731 0.38 4790 2.74 7255 3.00 3756 3.00 1568 0.61 4A ES
COMLAB 835 -0.82 124 1.10 2810 1.01 3400 1.40 1260 0.03 2850 1.95 4540 0.75 6710 0.19 3510 1.31 1610 1.30 4A ICP
COMLAB 834 -0.84 129 1.90 2650 -0.75 3220 -0.16 1350 2.75 2880 2.35 4340 -0.83 6950 2.10 3690 3.00 1650 1.97 4A ICP
COMLAB 824 -1.06 124 1.10 2590 -1.41 2920 -2.75 1260 0.03 2600 -1.34 4270 -1.39 5810 -3.00 3160 -2.56 1430 -1.69 4A ICP
COMLAB 899 0.61 114 -0.51 2755 0.41 3274 0.31 1285 0.79 2744 0.56 4451 0.05 6662 -0.19 3417 0.28 1540 0.14 4A ES
COMLAB 906 0.76 115 -0.34 2679 -0.43 3233 -0.05 1291 0.97 2726 0.32 4527 0.65 6758 0.57 3408 0.18 1534 0.04 4A ES
COMLAB 900 0.63 113 -0.67 2800 0.90 3170 -0.59 1210 -1.48 2660 -0.55 4480 0.28 6640 -0.37 3390 -0.02 1580 0.81 4A ES
COMLAB 892 0.45 116 -0.18 2760 0.46 3230 -0.07 1230 -0.87 2730 0.37 4340 -0.83 6830 1.15 3410 0.20 1500 -0.52 4A ES
COMLAB 862 -0.22 111 -0.99 2765 0.52 3263 0.21 1250 -0.27 2680 -0.29 4515 0.56 6820 1.07 3355 -0.41 1560 0.47 4A ES
COMLAB 901 0.65 113 -0.67 2880 1.78 3260 0.19 1230 -0.87 2740 0.50 4560 0.91 6530 -1.24 3440 0.53 1540 0.14 4A ES
COMLAB 920 1.08 134 2.71 2830 1.23 3660 3.00 1290 0.94 2800 1.29 4540 0.75 7220 3.00 3330 -0.68 1690 2.63 4A ES
COMLAB 895 0.52 112 -0.83 2810 1.01 3440 1.74 1250 -0.27 2670 -0.42 4450 0.04 6710 0.19 3480 0.97 1580 0.81 4A ICP
COMLAB 909 0.83 122 0.78 2890 1.89 3300 0.53 1280 0.64 2710 0.11 4740 2.34 6820 1.07 3430 0.42 1700 2.80 4A ES
COMLAB 810 -1.38 118 0.14 2760 0.46 3200 -0.33 1260 0.03 2720 0.24 4560 0.91 6760 0.59 3400 0.09 1580 0.81 4A ES
COMLAB 889 0.38 112 -0.83 2790 0.79 3300 0.53 1250 -0.27 2630 -0.95 4380 -0.52 6620 -0.53 3460 0.75 1570 0.64 4A ES
COMLAB 898 0.59 115 -0.34 2745 0.30 3298 0.51 1250 -0.27 2636 -0.87 4391 -0.43 6780 0.75 3429 0.41 1527 -0.07 4A ES
COMLAB 882 0.23 113 -0.67 2710 -0.09 3220 -0.16 1200 -1.78 2610 -1.21 4350 -0.75 6230 -3.00 3310 -0.90 1490 -0.69 4A ES
COMLAB 872 0.01 114 -0.51 2730 0.13 3270 0.27 1270 0.34 2670 -0.42 4360 -0.68 6640 -0.37 3390 -0.02 1480 -0.86 4A ES
COMLAB 960 1.97 107 -1.63 2580 -1.52 3460 1.91 1370 3.00 2750 0.63 4850 3.00 7640 3.00 3390 -0.02 1590 0.97 4A ES
COMLAB 916 0.99 121 0.54 2740 0.24 3360 1.05 1255 -0.12 2720 0.24 4570 0.99 6870 1.47 3580 2.08 1510 -0.36 4A MS
COMLAB 873 0.03 114 -0.51 2633 -0.94 3114 -1.07 1190 -2.08 2566 -1.79 4312 -1.06 6581 -0.84 3320 -0.79 1450 -1.35 5A ES
COMLAB 882 0.22 118 0.14 2662 -0.62 3157 -0.70 1235 -0.73 2572 -1.70 4365 -0.64 6470 -1.72 3312 -0.88 1453 -1.31 4A ICP
COMLAB 849 -0.51 114 -0.51 2750 0.35 3270 0.27 1270 0.34 2720 0.24 4410 -0.28 6650 -0.29 3440 0.53 1490 -0.69 4A ES
COMLAB 820 -1.15 106 -1.79 2740 0.24 3240 0.01 1230 -0.87 2730 0.37 4390 -0.44 6620 -0.53 3480 0.97 1520 -0.19 4A ES
COMLAB 832 -0.89 120 0.43 2702 -0.18 3089 -1.29 1247 -0.35 2792 1.18 4475 0.24 6663 -0.19 3386 -0.07 1465 -1.10 4A MS
COMLAB 874 0.05 114 -0.51 2756 0.42 3304 0.57 1286 0.82 2756 0.71 4496 0.40 6712 0.21 3466 0.82 1614 1.37 4A ES
COMLAB 916 0.99 113 -0.67 2800 0.90 3300 0.53 1260 0.03 2690 -0.16 4520 0.60 6680 -0.05 3420 0.31 1520 -0.19 4A ICP
COMLAB 718 -3.00 130 2.06 2566 -1.68 3140 -0.85 1275 0.49 2640 -0.81 4441 -0.03 6505 -1.44 3220 -1.90 1481 -0.84 4A ES
COMLAB 890 0.41 111 -1.07 2801 0.91 3380 1.22 1260 0.03 2655 -0.62 4271 -1.38 6728 0.33 3358 -0.38 1545 0.23 3A,MICR ES
COMLAB 902 0.67 113 -0.67 2783 0.71 3328 0.77 1311 1.57 2754 0.69 4641 1.56 6903 1.73 3536 1.59 1614 1.37 4A MS,AAS
COMLAB 903 0.70 117 0.02 2745 0.29 3204 -0.30 1298 1.17 2779 1.02 4537 0.73 6894 1.66 3426 0.38 1517 -0.25 4A ES
COMLAB 841 -0.69 108 -1.47 2620 -1.08 3050 -1.63 1200 -1.78 2550 -2.00 4290 -1.23 6470 -1.72 3270 -1.35 1430 -1.69 4A MS
COMLAB 908 0.81 116 -0.18 2778 0.66 3268 0.26 1245 -0.42 2663 -0.51 4428 -0.14 6651 -0.28 3451 0.65 1541 0.16 4A ES
COMLAB 881 0.21 118 0.15 2731 0.14 3220 -0.16 1277 0.56 2766 0.84 4523 0.62 6781 0.76 3453 0.68 1539 0.12 4A MS
COMLAB 844 -0.62 126 1.42 2700 -0.20 3250 0.10 1300 1.24 2700 -0.02 4490 0.36 6690 0.03 3450 0.64 1580 0.81 4A ES
COMLAB 920 1.08 119 0.30 2854 1.50 3453 1.85 1326 2.03 2834 1.74 4650 1.63 6815 1.03 3470 0.86 1589 0.96 4A ICP
COMLAB 829 -0.95 113 -0.62 2736 0.20 3236 -0.02 1255 -0.12 2708 0.08 4492 0.37 6739 0.42 3449 0.63 1536 0.08 4A ES
COMLAB 883 0.25 109 -1.31 2628 -0.99 3124 -0.99 1256 -0.09 2675 -0.35 4337 -0.86 6589 -0.77 3368 -0.26 1558 0.44 4A ES
COMLAB 819 -1.18 116 -0.18 2575 -1.58 3044 -1.68 1291 0.97 2736 0.45 4615 1.35 6789 0.82 3412 0.22 1501 -0.51 4A ES
COMLAB 848 -0.53 130 2.06 2650 -0.75 3130 -0.94 1240 -0.57 2690 -0.16 4880 3.00 7510 3.00 3820 3.00 1520 -0.19 4A ICP
COMLAB 850 -0.48 125 1.26 2630 -0.97 3210 -0.25 1260 0.03 2650 -0.68 4400 -0.36 6700 0.11 3360 -0.35 1550 0.31 4A AAS
COMLAB 823 -1.09 117 -0.02 2682 -0.40 3196 -0.37 1216 -1.30 2556 -1.92 4272 -1.37 6731 0.36 3372 -0.22 1479 -0.87 4A ES
COMLAB 909 0.83 111 -0.99 2720 0.02 3283 0.39 1263 0.12 2710 0.11 4450 0.04 6735 0.39 3460 0.75 1532 0.01 4A ES
COMLAB 834 -0.84 119 0.30 2954 2.60 3404 1.43 1215 -1.33 1567 -3.00 4671 1.79 7257 3.00 3752 3.00 1493 -0.64 4A
COMLAB 937 1.46 122 0.76 2800 0.90 3354 1.00 1242 -0.51 2658 -0.57 4271 -1.38 6545 -1.12 3194 -2.18 1484 -0.79 4A ICP
COMLAB 801 -1.58 126 1.40 2500 -2.40 3038 -1.73 1282 0.71 2627 -0.98 4274 -1.36 6465 -1.76 3273 -1.31 1510 -0.36 4A AAS
COMLAB 843 -0.64 114 -0.51 2610 -1.19 3270 0.27 1250 -0.27 2670 -0.42 4430 -0.12 6710 0.19 3430 0.42 1500 -0.52 4A AAS
COMLAB 822 -1.11 118 0.14 2692 -0.29 3024 -1.85 1317 1.75 2799 1.28 4461 0.13 6597 -0.71 3317 -0.83 1585 0.89 4A AAS
COMLAB 786 -1.91 112 -0.83 2594 -1.37 3144 -0.82 1243 -0.48 2680 -0.29 4378 -0.53 6640 -0.37 3322 -0.77 1478 -0.89 4A AAS
COMLAB 861 -0.24 124 1.10 2560 -1.74 3150 -0.76 1230 -0.87 2670 -0.42 4510 0.52 6590 -0.77 3310 -0.90 1480 -0.86 4A ES
COMLAB 866 -0.13 121 0.68 2864 1.61 3332 0.81 1363 3.00 2806 1.37 4655 1.67 6781 0.76 3445 0.58 1714 3.00 4A MS
COMLAB 911 0.88 264 3.00 2702 -0.18 3294 0.48 1282 0.70 2743 0.54 4184 -2.07 6459 -1.81 3290 -1.13 1398 -2.22 4A ES
COMLAB 911 0.87 119 0.31 2664 -0.60 3359 1.04 1267 0.23 2706 0.05 4347 -0.78 6778 0.73 3419 0.30 1640 1.81 4A ES
COMLAB 812 -1.33 119 0.30 2698 -0.22 3231 -0.06 1181 -2.35 2588 -1.50 4326 -0.94 6654 -0.26 3219 -1.91 1389 -2.37 4A ES
COMLAB 909 0.83 122 0.78 2819 1.11 3315 0.66 1275 0.49 2690 -0.16 4347 -0.78 6811 1.00 3426 0.38 1489 -0.71 4A ES
COMLAB 973 2.26 113 -0.67 2632 -0.95 3258 0.17 1284 0.76 2837 1.78 4581 1.08 6858 1.37 3525 1.47 1529 -0.04 4A ICP
COMLAB 872 0.01 117 -0.02 2735 0.19 3320 0.70 1282 0.70 2760 0.77 4566 0.96 6892 1.64 3415 0.26 1530 -0.02 4A ES
COMLAB 894 0.50 114 -0.51 2718 0.00 3235 -0.03 1266 0.21 2731 0.38 4452 0.06 6776 0.72 3491 1.10 1514 -0.29 4A AAS
MINELAB 834 -0.84 114 -0.51 2646 -0.79 3138 -0.87 1218 -1.24 2645 -0.75 4301 -1.14 6515 -1.36 3332 -0.66 1480 -0.86 FUS ES
MINELAB 800 -1.60 200 3.00 3000 3.00 3500 2.26 1300 1.24 2900 2.61 4600 1.23 7300 3.00 3700 3.00 1600 1.14 FUS XRF
MINELAB 986 2.56 129 1.88 2875 1.73 3037 -1.74 1418 3.00 2994 3.00 4912 3.00 7391 3.00 3675 3.00 1620 1.47 4A ES
MINELAB 778 -2.09 108 -1.47 2688 -0.33 3264 0.22 1238 -0.63 2652 -0.66 4356 -0.71 6552 -1.07 3310 -0.90 1524 -0.12 4A ES
MINELAB 982 2.46 263 3.00 2811 1.02 3704 3.00 1382 3.00 2984 3.00 4620 1.39 7086 3.00 3632 2.65 1843 3.00 3A,MICR ES
MINELAB 850 -0.48 120 0.46 2643 -0.83 3264 0.22 1260 0.03 2727 0.33 4487 0.33 6764 0.62 3380 -0.13 1577 0.76 4A AASMINELAB 867 -0.10 <200 bld 2608 -1.21 3211 -0.24 1289 0.91 2618 -1.10 4247 -1.57 6455 -1.84 3679 3.00 1576 0.74 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 15
Copper Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Copper Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
COMLAB
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-3 -2 -1 0 1 2 30 1 2
ZARAZMA TEHRAN
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
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Zarazma Minerals Studies Company ReportPage 16
Copper (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 840 112 2695 3182 1263 2728 4473 6749 3421 1535
STDEV (ppm) 51 7 104 126 46 77 116 200 91 51
95% CI (ppm) 12 2 25 29 11 18 28 48 22 12
95% CI (%) 1.41% 1.49% 0.93% 0.92% 0.85% 0.67% 0.62% 0.72% 0.64% 0.78% Copper Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 715 97 2440 2859 1139 2550 4165 6267 3229 1422
MEDIAN (ppm) 838 111 2715 3217 1256 2722 4460 6742 3427 1533
MAX (ppm) 964 130 2863 3400 1366 2914 4743 7140 3649 1669
IQR (ppm) 70 8 129 150 59 104 150 260 147 66
COUNT 72 62 67 73 72 69 68 67 68 70
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 768 -1.40 114 0.26 2660 -0.34 3040 -1.12 1300 0.79 2860 1.71 4430 -0.37 6890 0.70 3340 -0.89 1550 0.30 AR ICP
COMLAB 770 -1.36 129 2.51 2530 -1.59 3080 -0.80 1335 1.55 2895 2.17 4440 -0.29 7025 1.38 3410 -0.12 1640 2.07 AR ICP
COMLAB 793 -0.91 118 0.86 2500 -1.88 2890 -2.31 1330 1.44 2760 0.41 4460 -0.12 6870 0.60 3320 -1.11 1600 1.28 AR ICP
COMLAB 811 -0.56 125 1.91 2803 1.04 3191 0.07 1354 1.96 3027 3.00 4720 2.12 7140 1.95 3564 1.58 1552 0.34 AR ES
COMLAB 854 0.28 108 -0.64 2740 0.44 3250 0.54 1223 -0.88 2625 -1.34 4460 -0.12 6900 0.75 3320 -1.11 1540 0.10 AR ES
COMLAB 867 0.54 106 -0.94 2840 1.40 3280 0.78 1220 -0.94 2770 0.54 4570 0.83 6870 0.60 3400 -0.23 1550 0.30 AR ES
COMLAB 868 0.56 114 0.26 2810 1.11 3310 1.02 1255 -0.18 2770 0.54 4570 0.83 6780 0.16 3410 -0.12 1625 1.78 AR ES
COMLAB 906 1.30 102 -1.54 2740 0.44 3400 1.73 1240 -0.51 2710 -0.24 4380 -0.80 6710 -0.19 3470 0.54 1510 -0.49 AR ICP
COMLAB 858 0.36 114 0.26 2630 -0.63 3250 0.54 1270 0.14 2710 -0.24 4410 -0.55 6670 -0.39 3400 -0.23 1500 -0.69 AR ES
COMLAB 874 0.67 114 0.26 2730 0.34 3248 0.53 1281 0.38 2698 -0.39 4387 -0.74 6758 0.05 3465 0.49 1533 -0.04 AR ES
COMLAB 888 0.95 105 -1.09 2780 0.82 3310 1.02 1240 -0.51 2700 -0.37 4320 -1.32 6780 0.16 3440 0.21 1530 -0.10 AR ES
COMLAB 853 0.26 105 -1.09 2740 0.44 3240 0.46 1220 -0.94 2640 -1.15 4320 -1.32 6490 -1.29 3360 -0.67 1500 -0.69 AR ES
COMLAB 799 -0.80 109 -0.49 2670 -0.24 3130 -0.41 1265 0.03 2690 -0.50 4440 -0.29 6850 0.50 3520 1.09 1495 -0.79 AR AAS
COMLAB 860 0.40 108 -0.64 2650 -0.43 3270 0.70 1270 0.14 2750 0.28 4410 -0.55 6870 0.60 3500 0.87 1560 0.49 AR AAS
COMLAB 872 0.63 108 -0.64 2740 0.44 3240 0.46 1255 -0.18 2630 -1.28 4430 -0.37 6870 0.60 3400 -0.23 1580 0.89 AR ES
COMLAB 884 0.87 107 -0.86 2840 1.40 3380 1.57 1255 -0.18 2660 -0.89 4470 -0.03 6590 -0.79 3390 -0.34 1490 -0.89 AR MS
COMLAB 790 -0.97 120 1.16 2473 -2.14 2911 -2.14 1232 -0.68 2690 -0.50 4422 -0.44 6704 -0.22 3305 -1.27 1487 -0.95 AR ES
COMLAB 831 -0.17 119 1.07 2883 1.82 3329 1.16 1095 -3.00 2643 -1.11 4433 -0.35 6478 -1.35 3418 -0.03 1422 -2.23 AR AAS
COMLAB 831 -0.17 107 -0.84 2578 -1.13 3111 -0.56 1242 -0.47 2681 -0.61 4434 -0.34 6620 -0.64 3324 -1.06 1497 -0.75 AR ICP
COMLAB 964 2.44 110 -0.34 2737 0.41 3222 0.32 1278 0.31 2757 0.37 4498 0.21 6582 -0.83 3535 1.26 1609 1.46 AR ES
COMLAB 808 -0.63 116 0.53 2336 -3.00 3030 -1.20 1204 -1.30 2710 -0.24 4500 0.23 6478 -1.35 3254 -1.83 1459 -1.51 AR MS
COMLAB 843 0.07 111 -0.19 2760 0.63 3240 0.46 1240 -0.51 2680 -0.63 4330 -1.24 6680 -0.34 3490 0.76 1480 -1.08 AR ICP
COMLAB 962 2.40 125 1.92 3154 3.00 3356 1.38 1173 -1.95 3670 3.00 5664 3.00 8068 3.00 4084 3.00 1669 2.64 AR,MICR ES
COMLAB 827 -0.25 <1 -3.00 2741 0.44 3247 0.52 1182 -1.77 2622 -1.38 4574 0.87 6535 -1.07 3276 -1.59 1470 -1.28 AR ES
COMLAB 889 0.97 117 0.71 2728 0.32 3238 0.45 1276 0.27 2777 0.63 4511 0.32 6940 0.95 3490 0.76 1541 0.12 AR ES
COMLAB 828 -0.22 110 -0.41 2713 0.17 3166 -0.12 1249 -0.31 2703 -0.33 4484 0.09 6728 -0.10 3432 0.13 1528 -0.14 AR ES
COMLAB 845 0.11 112 -0.04 2612 -0.80 3080 -0.80 1247 -0.36 2663 -0.85 4372 -0.87 6612 -0.68 3273 -1.62 1532 -0.06 AR ES
COMLAB 873 0.65 113 0.11 2712 0.16 3324 1.13 1263 -0.01 2741 0.17 4542 0.59 6711 -0.19 3462 0.46 1533 -0.04 3A ES
COMLAB 834 -0.12 114 0.19 2525 -1.64 3000 -1.44 1235 -0.62 2675 -0.69 4270 -1.75 6550 -0.99 3320 -1.11 1475 -1.18 AR ES
COMLAB 853 0.25 114 0.31 2468 -2.19 2998 -1.45 1227 -0.80 2641 -1.14 4353 -1.04 6490 -1.29 3229 -2.11 1422 -2.23 AR MS
COMLAB 904 1.26 107 -0.79 2709 0.14 3237 0.44 1257 -0.14 2687 -0.54 4447 -0.23 6707 -0.21 3454 0.37 1518 -0.33 AR ES
COMLAB 863 0.46 133 3.00 2575 -1.16 3101 -0.64 1366 2.22 2903 2.27 4701 1.96 7138 1.94 3473 0.58 1611 1.50 AR AAS
COMLAB 799 -0.80 121 1.31 2772 0.74 3178 -0.03 1234 -0.64 2659 -0.90 4481 0.06 6493 -1.28 3396 -0.27 1500 -0.69 3A ICP
COMLAB 802 -0.74 109 -0.55 2801 1.02 3326 1.14 1209 -1.19 2690 -0.50 4391 -0.71 6669 -0.40 3487 0.73 1473 -1.22 AR ICP
COMLAB 797 -0.83 nr nr 2602 -0.90 3121 -0.48 1251 -0.27 2798 0.91 4410 -0.55 6775 0.13 3411 -0.11 1538 0.06 3A AAS
COMLAB 926 1.69 134 3.00 2760 0.63 3370 1.49 1340 1.66 2790 0.80 4690 1.86 7060 1.55 3580 1.75 1510 -0.49 AR ES
COMLAB 795 -0.87 114 0.26 2440 -2.46 2920 -2.07 1280 0.36 2710 -0.24 4330 -1.24 6690 -0.29 3320 -1.11 1450 -1.68 AR MS
COMLAB 847 0.14 112 -0.04 2663 -0.31 3191 0.07 1220 -0.94 2755 0.35 4460 -0.12 >5000 ald 3383 -0.41 1505 -0.59 AR ES
COMLAB 848 0.16 106 -0.98 2574 -1.17 3229 0.37 1212 -1.11 2644 -1.10 4441 -0.28 6692 -0.28 3305 -1.27 1517 -0.36 AR ES
COMLAB 834 -0.11 106 -0.94 2672 -0.22 3117 -0.51 1252 -0.25 2656 -0.94 4101 -3.00 6484 -1.32 3297 -1.36 1499 -0.71 AR ES
COMLAB 881 0.81 114 0.26 2715 0.19 3145 -0.29 1307 0.94 2798 0.91 4608 1.16 6883 0.67 3448 0.30 1538 0.06 AR ES
COMLAB 858 0.36 97 -2.28 2678 -0.16 3280 0.78 1281 0.38 2810 1.06 4540 0.57 6962 1.06 3518 1.07 1577 0.83 3A ICP
COMLAB 780 -1.17 120 1.16 2209 -3.00 3030 -1.20 1279 0.34 2771 0.56 4376 -0.84 6608 -0.70 3312 -1.19 1533 -0.04 AR AAS
MINELAB 830 -0.19 123 1.61 2699 0.04 3246 0.51 1252 -0.25 2778 0.65 4743 2.32 6821 0.36 3407 -0.15 1514 -0.42 AR AAS
MINELAB 820 -0.38 80 -3.00 2610 -0.82 3110 -0.57 1220 -0.94 2620 -1.41 4340 -1.15 6650 -0.49 3410 -0.12 1530 -0.10 3A AAS
MINELAB 825 -0.29 bld bld 2548 -1.42 3009 -1.37 1249 -0.31 2673 -0.72 4463 -0.09 6299 -2.24 3289 -1.45 1528 -0.14 AR AAS
MINELAB 814 -0.50 <200 bld 2660 -0.34 3169 -0.10 1281 0.38 2722 -0.08 4484 0.09 6788 0.20 3456 0.39 1549 0.28 3A AAS
MINELAB 833 -0.13 222 3.00 2818 1.18 3276 0.75 1325 1.34 2764 0.47 4438 -0.30 6722 -0.13 3447 0.29 1591 1.11 AR ICP
MINELAB 867 0.53 130 2.71 1646 -3.00 3217 0.28 1364 2.18 2719 -0.12 4685 1.83 2916 -3.00 3559 1.52 7151 3.00 AR AAS
MINELAB 730 -2.15 110 -0.34 2460 -2.27 2930 -1.99 1168 -2.07 2550 -2.32 4165 -2.66 6910 0.80 3103 -3.00 1423 -2.21 AR AAS
MINELAB 785 -1.07 115 0.41 2705 0.10 3123 -0.46 1259 -0.10 2640 -1.15 4350 -1.06 6964 1.07 3334 -0.95 1584 0.97 3A AAS
MINELAB 900 1.18 <500 bld 2800 1.01 3200 0.15 1300 0.79 2800 0.93 4500 0.23 6700 -0.24 3600 1.97 1600 1.28 3A AAS
MINELAB 855 0.30 408 3.00 2780 0.82 3346 1.30 1292 0.62 2771 0.56 4539 0.56 6893 0.72 3482 0.68 1530 -0.10 3A ES
MINELAB 873 0.64 112 -0.10 2791 0.93 3361 1.42 1256 -0.16 2788 0.78 4549 0.65 7060 1.55 3385 -0.39 1527 -0.15 ICP
MINELAB 801 -0.76 103 -1.39 2764 0.67 3033 -1.18 1329 1.42 2793 0.84 4260 -1.84 6290 -2.29 3127 -3.00 1457 -1.54 3A AAS
MINELAB 750 -1.76 117 0.71 2706 0.11 2986 -1.55 1280 0.36 2781 0.69 5070 3.00 7430 3.00 3482 0.68 1556 0.42 AR AAS
MINELAB 765 -1.46 <500 bld 2343 -3.00 2859 -2.55 1139 -2.70 2386 -3.00 3964 -3.00 5962 -3.00 3022 -3.00 1350 -3.00 AR AAS
MINELAB 906 1.30 111 -0.23 2728 0.32 3226 0.35 1299 0.77 2809 1.05 4581 0.93 6775 0.13 3547 1.39 1565 0.60 AR ES
MINELAB 865 0.50 111 -0.22 2801 1.02 3196 0.12 1328 1.40 2815 1.13 4615 1.22 7553 3.00 3522 1.12 1556 0.41 AR MS
MINELAB 836 -0.07 110 -0.27 2647 -0.46 3143 -0.31 1231 -0.71 2738 0.13 4450 -0.20 6746 -0.01 3384 -0.40 1493 -0.83 AR ES
MINELAB 878 0.75 112 -0.08 2797 0.98 3290 0.86 1283 0.42 2802 0.96 4549 0.65 6623 -0.63 3496 0.84 1573 0.75 AR ES
MINELAB 836 -0.07 108 -0.64 2754 0.57 3192 0.08 1232 -0.68 2676 -0.68 4502 0.25 6774 0.13 3422 0.02 1534 -0.02 AR ES
MINELAB 830 -0.19 103 -1.39 2750 0.53 3235 0.42 1300 0.79 2756 0.36 4535 0.53 6880 0.65 3450 0.32 1585 0.99 AR AAS
MINELAB 846 0.12 118 0.86 2572 -1.19 3217 0.28 1254 -0.21 2769 0.53 4449 -0.21 6876 0.63 3447 0.29 1498 -0.73 AR ES
MINELAB 817 -0.44 104 -1.20 2674 -0.20 3153 -0.22 1250 -0.30 2663 -0.85 4379 -0.82 6625 -0.62 3337 -0.92 1527 -0.16 AR ES
MINELAB 742 -1.91 109 -0.49 2727 0.31 3261 0.63 1272 0.18 2662 -0.86 4395 -0.68 6725 -0.12 3411 -0.11 1537 0.04 AR AAS
MINELAB 929 1.75 113 0.11 2674 -0.20 3246 0.51 1304 0.88 2763 0.45 4595 1.05 6727 -0.11 3649 2.51 1566 0.61 AR AAS
MINELAB 798 -0.82 118 0.86 2634 -0.59 3132 -0.39 1251 -0.27 2740 0.15 4512 0.33 6962 1.06 3492 0.79 1572 0.73 AR AAS
MINELAB 841 0.02 111 -0.14 2796 0.98 3289 0.85 1319 1.21 2776 0.62 4505 0.27 7028 1.39 3442 0.23 1593 1.15 3A AAS
MINELAB 942 2.01 111 -0.25 2847 1.47 3358 1.39 1319 1.20 2889 2.09 4609 1.16 7058 1.54 3520 1.09 1619 1.66 3A AAS
MINELAB 715 -2.45 125 1.89 2863 1.62 3280 0.78 1331 1.46 2914 2.42 4585 0.96 7100 1.75 3462 0.45 1598 1.25 3A AAS
MINELAB 786 -1.06 109 -0.49 2608 -0.83 3253 0.56 1257 -0.14 2657 -0.93 4443 -0.26 6742 -0.03 3317 -1.14 1521 -0.27 AR AAS
MINELAB 874 0.67 106 -0.94 2768 0.71 3220 0.30 1203 -1.31 2572 -2.03 4320 -1.32 6460 -1.44 3328 -1.02 1438 -1.91 AR AAS
MINELAB 820 -0.39 108 -0.57 2797 0.98 3244 0.50 1248 -0.34 2684 -0.58 4682 1.80 6524 -1.12 3439 0.21 1555 0.39 AR ICPMINELAB 533 -3.00 118 0.86 2180 -3.00 3032 -1.18 1063 -3.00 2254 -3.00 4056 -3.00 6267 -2.40 3116 -3.00 1280 -3.00 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 17
Copper Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Copper Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
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-3 -2 -1 0 1 2 30 1 2
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Zarazma Minerals Studies Company ReportPage 18
Lead (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 527 56 13 9 9 10 10 12 241 471
STDEV (ppm) 33 4 2 2 2 2 2 2 7 23
95% CI (ppm) 9 1 0 1 1 1 1 1 2 6
95% CI (%) 1.64% 1.75% 3.78% 5.93% 5.46% 5.12% 6.06% 4.28% 0.81% 1.31% Lead Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 448 49 9 6 5 6 7 8 223 409
MEDIAN (ppm) 534 56 13 9 9 10 10 12 242 469
MAX (ppm) 584 65 18 14 14 15 15 17 255 519
IQR (ppm) 34 4 3 3 2 3 3 2 9 24
COUNT 57 53 50 46 46 46 46 50 54 55
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 546 0.57 56 0.03 12 -0.47 10 0.10 9 -0.17 9 -0.79 9 -0.65 11 -0.54 240 -0.19 490 0.84 4A ES
COMLAB 476 -1.54 58 0.50 12 -0.69 11 0.89 6 -1.90 7 -1.89 7 -1.43 11 -0.65 235 -0.88 434 -1.58 4A ICP
COMLAB 463 -1.94 57 0.22 12 -0.69 10 0.37 10 0.40 12 0.84 7 -1.43 8 -2.26 280 3.00 501 1.32 4A ICP
COMLAB 448 -2.39 55 -0.33 13 -0.13 9 -0.16 8 -0.75 6 -2.43 <3 -3.00 10 -1.19 233 -1.16 445 -1.11 4A ICP
COMLAB 547 0.60 57 0.22 <20 bld <20 bld <20 bld <20 bld <20 bld <20 bld 248 0.92 466 -0.20 4A ES
COMLAB 564 1.12 62 1.61 16 1.55 10 0.37 4 -3.00 8 -1.34 9 -0.46 9 -1.72 230 -1.58 495 1.06 4A ES
COMLAB 522 -0.15 54 -0.60 14 0.43 7 -1.22 5 -2.47 10 -0.25 10 0.03 12 -0.12 244 0.36 497 1.14 4A ES
COMLAB 541 0.42 55 -0.33 12 -0.69 6 -1.75 10 0.40 9 -0.79 9 -0.46 12 -0.12 254 1.75 471 0.02 4A ES
COMLAB 512 -0.45 50 -1.71 9 -2.37 7 -1.22 7 -1.32 8 -1.34 8 -0.94 10 -1.19 244 0.36 469 -0.07 4A ES
COMLAB 548 0.63 54 -0.60 15 0.99 6 -1.75 12 1.55 10 -0.25 8 -0.94 13 0.42 242 0.09 468 -0.11 4A ES
COMLAB 569 1.27 62 1.61 16 1.55 9 -0.16 13 2.13 12 0.84 13 1.48 14 0.95 241 -0.05 546 3.00 4A ES
COMLAB 549 0.66 50 -1.71 18 2.67 3 -3.00 7 -1.32 9 -0.79 7 -1.43 12 -0.12 255 1.89 495 1.06 4A ICP
COMLAB 539 0.36 57 0.22 13 -0.13 8 -0.69 7 -1.32 9 -0.79 8 -0.94 10 -1.19 247 0.78 511 1.75 4A ES
COMLAB 448 -2.39 55 -0.33 14 0.43 11 0.89 15 3.00 19 3.00 18 3.00 19 3.00 242 0.09 475 0.19 4A ES
COMLAB 536 0.27 54 -0.60 15 0.99 11 0.89 11 0.98 10 -0.25 13 1.48 15 1.49 247 0.78 500 1.27 4A ES
COMLAB 543 0.48 56 -0.05 12 -0.69 8 -0.69 8 -0.75 10 -0.25 8 -0.94 11 -0.65 245 0.50 490 0.84 4A ES
COMLAB 534 0.21 54 -0.60 15 0.99 11 0.89 11 0.98 12 0.84 10 0.03 14 0.95 241 -0.05 460 -0.46 4A ES
COMLAB 537 0.30 55 -0.33 13 -0.13 10 0.37 11 0.98 13 1.39 11 0.51 13 0.42 244 0.36 441 -1.28 4A ES
COMLAB 582 1.66 54 -0.60 9 -2.37 9 -0.16 8 -0.75 10 -0.25 8 -0.94 13 0.42 238 -0.47 498 1.19 4A ES
COMLAB 557 0.91 56 -0.08 13 -0.36 9 -0.38 9 -0.17 11 0.13 10 -0.02 12 -0.17 264 3.00 540 3.00 4A MS
COMLAB 489 -1.15 65 2.44 15 0.99 13 1.95 10 0.40 13 1.39 13 1.48 13 0.42 229 -1.71 425 -1.97 5A ES
COMLAB 579 1.57 58 0.43 12 -0.42 9 -0.19 10 0.17 10 -0.17 10 0.17 12 -0.10 246 0.69 462 -0.38 4A ICP
COMLAB 549 0.66 55 -0.33 13 -0.13 8 -0.69 9 -0.17 11 0.30 12 0.99 13 0.42 248 0.92 457 -0.59 4A MS
COMLAB 530 0.09 49 -1.99 14 0.43 6 -1.75 9 -0.17 11 0.30 8 -0.94 11 -0.65 239 -0.33 459 -0.50 4A MS
COMLAB 499 -0.86 59 0.85 12 -0.72 8 -0.58 8 -0.63 8 -1.09 8 -1.19 10 -1.05 241 -0.07 441 -1.29 4A MS
COMLAB 532 0.15 60 1.05 <20 bld <20 bld <20 bld <20 bld <20 bld <20 bld 244 0.36 476 0.23 4A ES
COMLAB 525 -0.06 53 -0.88 <25 bld <25 bld <25 bld <25 bld <25 bld <25 bld 236 -0.74 440 -1.32 4A ICP
COMLAB 581 1.63 65 2.44 50 3.00 39 3.00 30 3.00 30 3.00 30 3.00 35 3.00 271 3.00 477 0.28 4A AAS
COMLAB 540 0.40 53 -0.80 <20 bld <20 bld <20 bld <20 bld <20 bld <20 bld 234 -0.97 467 -0.14 3A,MICR ES
COMLAB 543 0.48 59 0.78 14 0.43 11 0.89 10 0.40 12 0.84 12 0.99 13 0.42 245 0.50 458 -0.54 4A MS,AAS
COMLAB 540 0.40 54 -0.52 12 -0.81 9 -0.22 10 0.17 11 0.13 10 0.12 11 -0.44 245 0.54 456 -0.63 4A ES
COMLAB 535 0.24 55 -0.27 13 -0.36 8 -0.48 10 0.29 10 -0.03 11 0.32 13 0.20 245 0.50 469 -0.07 4A MS
COMLAB 532 0.15 60 1.05 12 -0.69 9 -0.16 9 -0.17 10 -0.25 9 -0.46 10 -1.19 244 0.36 465 -0.24 4A ES
COMLAB 546 0.58 56 0.06 13 -0.02 8 -0.53 10 0.35 11 0.13 10 0.22 13 0.15 250 1.17 478 0.30 4A MS
COMLAB 584 1.72 59 0.78 13 -0.13 8 -0.69 9 -0.17 10 -0.25 8 -0.94 10 -1.19 241 -0.05 519 2.10 4A MS
COMLAB 523 -0.12 52 -1.16 12 -0.69 8 -0.69 8 -0.75 10 -0.25 10 0.03 11 -0.65 234 -1.02 481 0.45 4A ICP
COMLAB 497 -0.90 60 1.00 11 -1.03 9 -0.22 8 -0.83 10 -0.40 7 -1.35 12 -0.28 225 -2.27 464 -0.30 4A ES
COMLAB 534 0.21 54 -0.60 14 0.43 9 -0.16 10 0.40 12 0.84 11 0.51 13 0.42 241 -0.05 472 0.06 4A MS
COMLAB 458 -2.09 60 1.05 12 -0.69 11 0.89 10 0.40 19 3.00 7 -1.43 12 -0.12 252 1.47 468 -0.11 4A ES
COMLAB 544 0.51 56 -0.05 12 -0.58 8 -0.64 8 -0.75 9 -0.90 9 -0.65 10 -1.13 242 0.09 492 0.93 4A ICP
COMLAB 539 0.35 50 -1.85 11 -1.37 7 -1.17 9 -0.06 9 -0.96 9 -0.26 11 -0.60 228 -1.80 467 -0.15 4A MS
COMLAB 528 0.03 55 -0.33 12 -0.69 7 -1.22 12 1.55 12 0.84 11 0.51 14 0.95 242 0.09 465 -0.24 4A ES
COMLAB 647 3.00 54 -0.49 40 3.00 21 3.00 26 3.00 31 3.00 26 3.00 99 3.00 317 3.00 557 3.00 4A
COMLAB 489 -1.14 55 -0.27 14 0.26 10 0.58 10 0.17 9 -0.85 11 0.32 14 0.74 237 -0.63 542 3.00 4A ICP
COMLAB 489 -1.16 51 -1.43 24 3.00 16 3.00 7 -1.32 29 3.00 23 3.00 14 0.93 234 -1.05 442 -1.25 4A AAS
COMLAB 507 -0.61 52 -1.16 15 0.99 10 0.37 11 0.98 14 1.94 15 2.45 16 2.02 246 0.64 467 -0.16 4A,FUS AAS,MS
COMLAB 468 -1.79 63 1.88 13 -0.13 <10 bld <10 bld <10 bld <10 bld 12 -0.12 238 -0.47 456 -0.63 4A AAS
COMLAB 503 -0.73 57 0.22 15 0.99 14 2.48 11 0.98 15 2.48 14 1.96 15 1.49 246 0.64 480 0.41 4A AAS
COMLAB 483 -1.33 58 0.50 11 -1.25 8 -0.69 10 0.40 11 0.30 11 0.51 11 -0.65 233 -1.16 506 1.53 4A ES
COMLAB 528 0.02 68 3.00 16 1.75 12 1.37 15 3.00 12 0.58 14 2.11 13 0.47 250 1.19 474 0.15 4A MS
COMLAB 424 -3.00 55 -0.33 13 -0.13 15 3.00 7 -1.32 64 3.00 10 0.03 10 -1.19 223 -2.54 409 -2.67 4A ES
COMLAB 531 0.12 77 3.00 15 1.11 16 3.00 14 2.68 14 2.21 17 3.00 17 2.36 254 1.68 486 0.68 4A ES
COMLAB 535 0.24 56 -0.02 13 -0.25 8 -0.48 10 0.40 11 0.41 11 0.51 13 0.26 243 0.22 475 0.19 4A ES
COMLAB 512 -0.45 39 -3.00 15 0.99 12 1.42 9 -0.17 10 -0.25 10 0.03 13 0.42 242 0.09 417 -2.32 4A ES
COMLAB 570 1.30 50 -1.71 <2 -3.00 11 0.89 <2 -3.00 <2 -3.00 <2 -3.00 3 -3.00 246 0.64 517 2.01 4A ICP
COMLAB 512 -0.45 57 0.22 13 -0.13 9 -0.16 8 -0.75 9 -0.79 9 -0.46 11 -0.65 238 -0.47 476 0.23 4A ES
COMLAB 547 0.60 nr nr nr nr nr nr nr nr nr nr nr nr nr nr 233 -1.16 475 0.19 4A AAS
MINELAB <100 -3.00 <100 bld <100 bld <100 bld <100 bld <100 bld <100 bld <100 bld <100 -3.00 <100 -3.00 FUS XRF
MINELAB 567 1.20 35 -3.00 16 1.61 14 2.26 64 3.00 12 0.91 12 0.93 16 2.08 252 1.48 466 -0.19 4A ES
MINELAB 562 1.06 60 1.05 12 -0.69 10 0.37 8 -0.75 10 -0.25 8 -0.94 10 -1.19 292 3.00 512 1.79 4A ES
MINELAB 383 -3.00 <10 -3.00 <10 bld <10 bld <10 bld <10 bld <10 bld <10 bld 129 -3.00 310 -3.00 3A,MICR ES
MINELAB 545 0.54 58 0.36 13 0.03 11 0.89 10 0.40 9 -0.63 11 0.56 15 1.49 242 0.13 510 1.71 4A AAS
MINELAB 514 -0.38 <200 bld <200 bld <200 bld <200 bld <200 bld <200 bld <200 bld 249 1.06 479 0.35 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 19
Lead Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Lead Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
COMLAB
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Zarazma Minerals Studies Company ReportPage 20
Lead (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 471 29 10 8 5 7 6 9 236 468
STDEV (ppm) 65 3 2 1 1 2 1 2 13 25
95% CI (ppm) 17 1 1 0 0 0 0 0 3 7
95% CI (%) 3.60% 2.66% 6.14% 4.84% 7.48% 6.76% 6.01% 4.88% 1.45% 1.40% Lead Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 299 23 5 6 2 4 3 6 205 405
MEDIAN (ppm) 480 29 10 8 4 7 6 9 238 468
MAX (ppm) 603 36 15 12 7 11 8 13 265 529
IQR (ppm) 87 4 3 2 1 2 1 2 18 31
COUNT 58 48 48 45 42 47 42 48 56 55
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 408 -0.97 31 0.78 10 -0.19 8 -0.23 3 -1.43 7 -0.22 5 -0.57 8 -0.63 244 0.58 501 1.37 AR ICP
COMLAB 412 -0.91 28 -0.34 15 2.04 7 -0.97 6 1.24 13 3.00 6 0.33 9 0.03 238 0.12 482 0.59 AR ICP
COMLAB 357 -1.75 31 0.78 12 0.70 7 -0.97 7 2.12 7 -0.22 5 -0.57 8 -0.63 232 -0.35 474 0.26 AR ICP
COMLAB 334 -2.10 32 1.15 11 0.25 10 1.23 11 3.00 10 1.51 16 3.00 10 0.68 237 0.04 432 -1.45 AR ES
COMLAB 503 0.48 30 0.41 10 -0.19 6 -1.70 4 -0.54 7 -0.22 6 0.33 9 0.03 236 -0.04 459 -0.35 AR ES
COMLAB 480 0.13 28 -0.34 10 -0.19 9 0.50 4 -0.54 6 -0.80 6 0.33 9 0.03 240 0.27 480 0.51 AR ES
COMLAB 472 0.01 28 -0.34 12 0.70 10 1.23 6 1.24 10 1.51 6 0.33 10 0.68 240 0.27 487 0.79 AR ES
COMLAB 525 0.82 29 0.04 15 2.04 10 1.23 4 -0.54 8 0.36 6 0.33 11 1.33 246 0.73 468 0.02 AR ICP
COMLAB 500 0.44 30 0.41 12 0.70 9 0.50 4 -0.54 8 0.36 6 0.33 7 -1.28 243 0.50 452 -0.63 AR ES
COMLAB 497 0.39 28 -0.34 10 -0.19 8 -0.23 5 0.35 7 -0.22 5 -0.57 8 -0.63 240 0.27 490 0.92 AR ES
COMLAB 492 0.32 28 -0.34 11 0.25 9 0.50 6 1.24 8 0.36 5 -0.57 8 -0.63 238 0.12 462 -0.23 AR ES
COMLAB 494 0.35 28 -0.34 12 0.70 8 -0.23 4 -0.54 7 -0.22 6 0.33 7 -1.28 238 0.12 457 -0.43 AR ES
COMLAB 467 -0.07 29 0.04 nr nr nr nr nr nr nr nr nr nr nr nr 242 0.43 468 0.02 AR AAS
COMLAB 496 0.38 27 -0.71 9 -0.64 9 0.50 6 1.24 7 -0.22 6 0.33 9 0.03 239 0.19 475 0.30 AR AAS
COMLAB 477 0.09 28 -0.34 11 0.25 9 0.50 4 -0.54 8 0.36 6 0.33 9 0.03 237 0.04 489 0.88 AR ES
COMLAB 456 -0.23 27 -0.56 9 -0.69 7 -0.90 4 -0.27 7 -0.34 5 -0.48 8 -0.56 244 0.58 460 -0.31 AR MS
COMLAB 299 -2.63 26 -1.08 13 1.15 12 2.70 8 3.00 11 2.09 8 2.14 11 1.33 222 -1.12 435 -1.33 AR ES
COMLAB 585 1.73 31 0.87 10 -0.09 8 -0.31 5 -0.01 7 -0.12 6 -0.12 9 0.01 247 0.80 500 1.34 AR ICP
COMLAB 549 1.19 25 -1.45 10 -0.19 10 1.23 4 -0.54 4 -1.96 8 2.14 11 1.33 248 0.89 486 0.75 AR ES
COMLAB 473 0.02 31 0.76 15 1.94 7 -1.33 3 -1.18 5 -1.13 4 -1.38 10 0.64 224 -0.97 451 -0.69 AR MS
COMLAB 532 0.93 53 3.00 12 0.70 7 -0.97 8 3.00 11 2.09 10 3.00 10 0.68 245 0.66 472 0.18 AR MS
COMLAB 401 -1.07 17 -3.00 8 -1.25 7 -0.79 3 -1.18 6 -1.06 6 0.00 11 1.27 216 -1.58 362 -3.00 AR,MICR ES
COMLAB 526 0.83 14 -3.00 25 3.00 26 3.00 7 2.55 21 3.00 27 3.00 38 3.00 249 0.98 492 1.00 AR ES
COMLAB 509 0.58 32 1.15 11 0.25 9 0.50 5 0.35 8 0.36 6 0.33 9 0.03 237 0.04 465 -0.10 AR ES
COMLAB 476 0.07 29 -0.04 7 -1.53 6 -1.98 3 -1.00 6 -1.03 4 -1.10 7 -1.23 223 -1.07 445 -0.94 AR ES
COMLAB 517 0.70 31 0.78 11 0.25 9 0.50 6 1.24 8 0.36 6 0.33 8 -0.63 229 -0.58 465 -0.10 AR MS
COMLAB 541 1.06 55 3.00 <30 bld <30 bld <30 bld <30 bld <30 bld <30 bld 2101 3.00 485 0.71 3A ES
COMLAB 486 0.22 31 0.78 7 -1.53 9 0.50 <5 bld 6 -0.80 <5 bld <5 bld 232 -0.35 442 -1.04 AR ES
COMLAB 532 0.92 28 -0.41 11 0.07 8 -0.31 5 0.17 7 -0.05 6 0.24 9 0.16 243 0.46 474 0.24 AR MS
COMLAB 521 0.76 27 -0.71 9 -0.64 7 -0.97 5 0.35 7 -0.22 5 -0.57 8 -0.63 238 0.12 464 -0.14 AR ES
COMLAB 305 -2.54 35 2.26 10 -0.19 9 0.50 5 0.35 9 0.94 7 1.23 10 0.68 207 -2.28 439 -1.16 AR AAS
COMLAB 431 -0.62 48 3.00 8 -1.09 3 -3.00 5 0.35 7 -0.22 5 -0.57 9 0.03 256 1.51 567 3.00 3A ICP
COMLAB 415 -0.86 25 -1.38 9 -0.55 7 -0.75 3 -1.52 5 -1.21 4 -1.48 7 -1.48 227 -0.76 419 -1.97 AR ICP
COMLAB 454 -0.27 32 1.15 12 0.70 10 1.23 6 1.24 9 0.94 6 0.33 9 0.03 241 0.35 471 0.14 AR MS
COMLAB 518 0.71 30 0.41 10 -0.19 7 -0.97 4 -0.54 6 -0.80 5 -0.57 7 -1.28 228 -0.66 461 -0.27 AR MS
COMLAB 349 -1.87 24 -1.82 10 -0.19 8 -0.23 <3 bld 6 -0.80 3 -2.38 6 -1.93 205 -2.44 405 -2.55 AR ES
COMLAB 479 0.12 29 0.09 14 1.62 14 3.00 6 1.36 13 3.00 12 3.00 15 3.00 243 0.49 474 0.26 AR ES
COMLAB 399 -1.11 28 -0.34 10 -0.19 9 0.50 5 0.35 8 0.36 5 -0.57 8 -0.63 208 -2.20 424 -1.78 AR ES
COMLAB 519 0.73 30 0.41 12 0.70 9 0.50 4 -0.54 6 -0.80 5 -0.57 8 -0.63 246 0.73 489 0.88 AR ES
COMLAB 893 3.00 40 3.00 89 3.00 49 3.00 49 3.00 69 3.00 81 3.00 66 3.00 348 3.00 594 3.00 3A ICP
COMLAB 367 -1.60 26 -1.08 8 -1.09 7 -0.97 4 -0.54 11 2.09 5 -0.57 10 0.68 230 -0.50 476 0.35 AR AAS
MINELAB 449 -0.34 25 -1.63 7 -1.53 6 -1.38 4 -0.90 6 -1.06 4 -1.05 6 -1.69 246 0.71 466 -0.07 AR ES
MINELAB 526 0.84 25 -1.45 14 1.59 14 3.00 <5 bld 5 -1.38 9 3.00 11 1.33 249 0.97 491 0.96 3A AAS
MINELAB 543 1.09 32 1.28 14 1.43 15 3.00 <10 bld 11 2.31 14 3.00 13 2.54 254 1.35 520 2.13 AR ICP
MINELAB 405 -1.01 30 0.43 433 3.00 9 0.13 4 -0.63 7 -0.22 8 2.36 11 1.53 226 -0.83 7 -3.00 AR AAS
MINELAB 537 1.00 <50 bld <50 bld <50 bld <50 bld <50 bld <50 bld <50 bld 255 1.43 487 0.79 3A AAS
MINELAB 700 3.00 <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld 3A AAS
MINELAB 222 -3.00 14 -3.00 7 -1.53 8 -0.23 4 -0.54 7 -0.22 8 2.14 12 1.99 104 -3.00 175 -3.00 3A ES
MINELAB 506 0.52 27 -0.63 9 -0.73 7 -0.90 4 -0.63 7 -0.40 5 -0.85 8 -0.95 225 -0.87 439 -1.16 ICP
MINELAB 422 -0.75 29 -0.13 11 0.34 9 0.65 5 0.63 8 0.14 7 1.10 9 0.14 218 -1.41 434 -1.37 AR ES
MINELAB 436 -0.55 29 -0.14 nr nr nr nr nr nr nr nr nr nr 9 0.18 228 -0.65 467 -0.02 AR MS
MINELAB 471 0.00 19 -3.00 5 -2.32 11 2.01 14 3.00 8 0.52 6 0.11 10 0.76 225 -0.89 447 -0.85 AR ES
MINELAB 461 -0.15 30 0.43 <17 bld <17 bld <17 bld <17 bld <17 bld <17 bld 242 0.43 454 -0.53 AR ES
MINELAB 494 0.35 32 1.15 10 -0.19 8 -0.23 4 -0.54 8 0.36 6 0.33 8 -0.63 248 0.89 470 0.10 AR ES
MINELAB 477 0.09 40 3.00 <10 bld <10 bld <10 bld 17 3.00 <10 bld 17 3.00 259 1.74 487 0.79 AR ES
MINELAB 603 2.01 46 3.00 48 3.00 43 3.00 67 3.00 73 3.00 64 3.00 70 3.00 277 3.00 529 2.51 AR AAS
MINELAB 550 1.20 bld bld bld bld bld bld bld bld bld bld bld bld bld bld 246 0.73 475 0.30 AR AAS
MINELAB 526 0.83 32 1.07 34 3.00 28 3.00 14 3.00 14 3.00 16 3.00 14 3.00 247 0.80 488 0.83 3A AAS
MINELAB 500 0.44 36 2.45 11 0.43 9 0.50 6 0.88 8 0.36 6 0.42 9 0.16 265 2.18 498 1.24 3A AAS
MINELAB 510 0.59 23 -2.19 12 0.61 10 1.38 4 -0.36 9 1.11 9 3.00 10 0.42 232 -0.32 457 -0.44 AR AAS
MINELAB 451 -0.31 26 -0.99 8 -0.91 8 -0.29 4 -0.21 6 -0.52 5 -0.23 7 -1.14 232 -0.34 461 -0.27 AR ICP
MINELAB 418 -0.81 30 0.44 9 -0.64 7 -0.68 2 -1.96 5 -1.61 5 -1.03 7 -1.54 213 -1.82 428 -1.60 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 21
Lead Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Lead Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
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Zarazma Minerals Studies Company ReportPage 22
Zinc (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 486 12 254 90 37 43 97 121 583 1139
STDEV (ppm) 22 2 18 10 3 4 5 7 20 59
95% CI (ppm) 6 0 5 2 1 1 1 2 5 15
95% CI (%) 1.19% 4.01% 1.82% 2.74% 1.89% 2.41% 1.33% 1.55% 0.91% 1.31% Zinc Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 429 8 217 66 31 33 88 104 544 978
MEDIAN (ppm) 489 12 253 90 36 43 96 121 582 1139
MAX (ppm) 532 16 286 112 43 53 108 141 638 1275
IQR (ppm) 27 2 23 11 3 5 6 9 24 61
COUNT 55 46 57 59 53 52 54 56 56 61
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 492 0.26 18 3.00 233 -1.17 82 -0.85 41 1.57 49 1.40 102 0.98 132 1.45 569 -0.70 1120 -0.32 4A ES
COMLAB 429 -2.64 12 -0.08 242 -0.66 90 -0.02 36 -0.20 43 -0.07 99 0.46 125 0.49 589 0.30 1110 -0.49 4A ICP
COMLAB 476 -0.48 13 0.52 247 -0.38 93 0.29 39 0.98 44 0.19 103 1.30 129 1.06 591 0.39 1170 0.53 4A ICP
COMLAB 410 -3.00 11 -0.68 227 -1.51 88 -0.23 37 0.19 43 -0.07 97 0.04 115 -0.91 549 -1.69 1090 -0.83 4A ICP
COMLAB 466 -0.94 <20 bld 242 -0.66 88 -0.23 34 -0.99 40 -0.86 93 -0.79 119 -0.35 556 -1.34 1119 -0.33 4A ES
COMLAB 464 -1.03 11 -0.68 228 -1.45 83 -0.75 34 -0.99 40 -0.86 91 -1.21 112 -1.33 582 -0.05 1105 -0.57 4A ES
COMLAB 502 0.72 11 -0.68 282 1.61 97 0.71 35 -0.60 43 -0.07 100 0.67 123 0.21 615 1.59 1250 1.89 4A ES
COMLAB 506 0.90 12 -0.08 274 1.15 97 0.71 37 0.19 43 -0.07 98 0.25 125 0.49 615 1.59 1180 0.70 4A ES
COMLAB 445 -1.90 7 -3.00 257 0.19 90 -0.02 33 -1.39 39 -1.13 94 -0.58 121 -0.07 580 -0.15 1160 0.36 4A ES
COMLAB 498 0.54 12 -0.08 279 1.44 97 0.71 35 -0.60 43 -0.07 97 0.04 120 -0.21 611 1.39 1160 0.36 4A ES
COMLAB 525 1.78 14 1.12 285 1.78 112 2.27 38 0.59 46 0.72 101 0.88 132 1.48 588 0.25 1275 2.31 4A ES
COMLAB 504 0.81 6 -3.00 278 1.38 99 0.92 34 -0.99 46 0.72 96 -0.17 122 0.07 611 1.39 1190 0.87 4A ICP
COMLAB 503 0.77 15 1.72 271 0.98 94 0.40 34 -0.99 43 -0.07 109 2.55 130 1.20 593 0.49 1210 1.21 4A ES
COMLAB 464 -1.03 16 2.32 248 -0.32 88 -0.23 36 -0.20 42 -0.34 90 -1.42 114 -1.05 582 -0.05 1130 -0.15 4A ES
COMLAB 499 0.58 12 -0.08 278 1.38 99 0.92 37 0.19 41 -0.60 99 0.46 121 -0.07 617 1.68 1220 1.38 4A ES
COMLAB 497 0.49 12 -0.08 273 1.10 97 0.71 34 -0.99 41 -0.60 93 -0.79 121 -0.07 592 0.44 1166 0.46 4A ES
COMLAB 486 -0.02 12 -0.08 267 0.76 98 0.81 35 -0.60 41 -0.60 95 -0.37 116 -0.77 576 -0.35 1150 0.19 4A ES
COMLAB 481 -0.25 12 -0.08 259 0.30 96 0.61 35 -0.60 51 2.03 96 -0.17 117 -0.63 601 0.89 1120 -0.32 4A ES
COMLAB 532 2.10 10 -1.28 258 0.25 104 1.44 38 0.59 42 -0.34 108 2.34 141 2.74 594 0.54 1250 1.89 4A ES
COMLAB 505 0.86 12 -0.08 263 0.53 103 1.33 37 0.19 41 -0.60 102 1.09 128 0.92 626 2.13 1200 1.04 4A MS
COMLAB 496 0.44 12 -0.08 244 -0.55 66 -2.51 25 -3.00 61 3.00 108 2.34 133 1.62 569 -0.70 1072 -1.13 5A ES
COMLAB 491 0.23 11 -0.92 258 0.25 97 0.69 34 -0.91 40 -0.89 95 -0.46 113 -1.18 547 -1.77 1177 0.65 4A ICP
COMLAB 482 -0.20 11 -0.68 247 -0.38 86 -0.43 36 -0.20 43 -0.07 100 0.67 119 -0.35 579 -0.20 1070 -1.16 4A ES
COMLAB 520 1.55 <200 bld 270 0.93 <200 bld <200 bld <200 bld <200 bld <200 bld 600 0.84 1150 0.19 NAA
COMLAB 482 -0.20 8 -2.48 250 -0.21 88 -0.23 34 -0.99 40 -0.86 96 -0.17 118 -0.49 592 0.44 1130 -0.15 4A ES
COMLAB 489 0.13 13 0.46 278 1.40 92 0.16 38 0.59 46 0.77 102 1.09 129 1.03 584 0.06 1122 -0.29 4A MS
COMLAB 469 -0.80 24 3.00 253 -0.04 96 0.61 59 3.00 59 3.00 113 3.00 148 3.00 582 -0.05 1140 0.02 4A ES
COMLAB 580 3.00 10 -1.28 253 -0.04 94 0.40 31 -2.17 45 0.45 98 0.25 114 -1.05 573 -0.50 1140 0.02 4A ICP
COMLAB 496 0.44 26 3.00 245 -0.49 72 -1.89 50 3.00 51 2.03 98 0.25 154 3.00 582 -0.05 1143 0.07 4A AAS
COMLAB 484 -0.12 <20 bld 243 -0.63 78 -1.27 21 -3.00 24 -3.00 77 -3.00 106 -2.24 577 -0.30 1139 0.01 3A,MICR ES
COMLAB 495 0.40 15 1.72 199 -3.00 80 -1.06 36 -0.20 45 0.45 90 -1.42 115 -0.91 560 -1.14 1065 -1.25 4A MS,AAS
COMLAB 497 0.49 11 -0.68 267 0.76 95 0.50 36 -0.24 42 -0.23 97 -0.04 122 0.07 581 -0.10 1147 0.14 4A ES
COMLAB 458 -1.30 12 -0.38 249 -0.26 89 -0.12 34 -0.99 39 -1.26 90 -1.52 115 -0.91 549 -1.69 1070 -1.16 4A MS
COMLAB 496 0.44 12 -0.08 256 0.13 95 0.50 37 0.19 42 -0.34 96 -0.17 119 -0.35 589 0.30 1146 0.12 4A ES
COMLAB 506 0.90 13 0.52 265 0.64 96 0.61 38 0.59 42 -0.34 96 -0.17 125 0.49 603 0.99 1167 0.48 4A MS
COMLAB 525 1.78 13 0.52 261 0.42 110 2.06 40 1.38 49 1.51 103 1.30 127 0.78 582 -0.05 1260 2.06 4A ES
COMLAB 524 1.73 9 -1.88 260 0.36 95 0.50 35 -0.60 42 -0.34 98 0.25 125 0.49 582 -0.05 1226 1.48 4A ICP
COMLAB 505 0.87 12 -0.26 251 -0.14 81 -0.97 36 -0.12 40 -0.94 92 -0.94 126 0.56 579 -0.19 1137 -0.03 4A ES
COMLAB 502 0.72 11 -0.68 249 -0.26 87 -0.33 38 0.59 44 0.19 97 0.04 122 0.07 595 0.59 1143 0.07 4A ES
COMLAB 461 -1.17 14 1.12 232 -1.23 87 -0.33 40 1.38 56 3.00 99 0.46 124 0.35 575 -0.40 1088 -0.86 4A ES
COMLAB 470 -0.75 19 3.00 218 -2.02 72 -1.88 39 0.90 47 0.98 95 -0.35 120 -0.21 563 -0.99 1110 -0.49 4A ICP
COMLAB 477 -0.43 10 -1.28 247 -0.38 85 -0.54 43 2.56 46 0.72 95 -0.37 116 -0.77 566 -0.85 1100 -0.66 4A AAS
COMLAB 489 0.12 10 -1.28 253 -0.04 95 0.50 32 -1.78 37 -1.65 88 -1.84 119 -0.35 576 -0.35 1160 0.36 4A ES
COMLAB 506 0.90 12 -0.08 239 -0.83 89 -0.12 36 -0.20 41 -0.60 94 -0.58 120 -0.21 565 -0.90 1149 0.17 4A ES
COMLAB 592 3.00 20 3.00 283 1.66 98 0.82 50 3.00 53 2.61 106 1.92 137 2.18 652 3.00 1233 1.60 4A
COMLAB 479 -0.33 12 0.10 245 -0.51 87 -0.31 39 0.90 41 -0.73 95 -0.29 122 0.07 585 0.10 1076 -1.06 4A ICP
COMLAB 486 -0.04 14 1.08 239 -0.84 84 -0.69 41 1.79 78 3.00 94 -0.60 131 1.28 570 -0.63 1110 -0.49 4A AAS
COMLAB 497 0.49 12 -0.08 237 -0.94 72 -1.89 40 1.38 45 0.45 100 0.67 126 0.64 594 0.54 1150 0.19 4A AAS
COMLAB 479 -0.34 12 -0.08 242 -0.66 86 -0.43 31 -2.17 33 -2.71 79 -3.00 117 -0.63 547 -1.79 1104 -0.59 4A AAS
COMLAB 469 -0.80 11 -0.68 197 -3.00 79 -1.16 37 0.19 43 -0.07 94 -0.58 119 -0.35 544 -1.94 1074 -1.10 4A AAS
COMLAB 489 0.12 54 3.00 249 -0.26 91 0.09 41 1.77 46 0.72 105 1.71 126 0.64 nr nr 1090 -0.83 4A ES
COMLAB 411 -3.00 16 2.04 224 -1.68 83 -0.74 38 0.47 41 -0.61 89 -1.70 116 -0.71 520 -3.00 978 -2.72 4A MS
COMLAB 435 -2.36 23 3.00 220 -1.91 87 -0.33 37 0.19 48 1.24 90 -1.42 110 -1.61 515 -3.00 990 -2.52 4A ES
COMLAB 498 0.56 18 3.00 264 0.60 94 0.39 38 0.76 46 0.72 93 -0.84 125 0.48 580 -0.14 1125 -0.23 4A ES
COMLAB 464 -1.03 12 -0.08 244 -0.55 90 -0.02 35 -0.60 40 -0.86 94 -0.58 120 -0.21 563 -0.99 1068 -1.20 4A ES
COMLAB 475 -0.52 13 0.52 217 -2.08 69 -2.20 36 -0.20 42 -0.34 96 -0.17 126 0.64 577 -0.30 1106 -0.55 4A ES
COMLAB 577 3.00 45 3.00 286 1.83 145 3.00 75 3.00 93 3.00 144 3.00 170 3.00 621 1.88 1206 1.14 4A ICP
COMLAB 492 0.26 14 1.12 265 0.64 95 0.50 39 0.98 46 0.72 104 1.50 129 1.06 598 0.74 1158 0.33 4A ES
MINELAB 900 3.00 <100 bld <100 -3.00 <100 bld <100 bld <100 bld <100 bld <100 -3.00 400 -3.00 1100 -0.66 FUS XRF
MINELAB 628 3.00 29 3.00 286 1.85 107 1.70 62 3.00 61 3.00 119 3.00 147 3.00 638 2.75 1246 1.81 4A ES
MINELAB 595 3.00 15 1.60 276 1.24 105 1.50 35 -0.44 31 -3.00 90 -1.40 113 -1.19 606 1.14 1191 0.88 4A ES
MINELAB 466 -0.92 15 1.54 189 -3.00 86 -0.46 35 -0.48 49 1.59 78 -3.00 104 -2.46 455 -3.00 889 -3.00 3A,MICR ES
MINELAB 474 -0.59 14 0.82 259 0.32 83 -0.77 35 -0.68 39 -1.07 97 0.13 123 0.24 582 -0.05 1133 -0.10 4A AASMINELAB 454 -1.48 <200 bld <200 -3.00 <200 bld <200 bld <200 bld <200 bld <200 bld 571 -0.62 1113 -0.44 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 23
Zinc Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Zinc Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
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Zarazma Minerals Studies Company ReportPage 24
Zinc (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 449 10 167 42 34 41 95 121 553 1118
STDEV (ppm) 54 1 14 5 3 3 7 7 28 44
95% CI (ppm) 14 0 4 2 1 1 2 2 8 12
95% CI (%) 3.19% 4.38% 2.53% 3.70% 2.19% 2.34% 1.99% 1.63% 1.36% 1.05% Zinc Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 315 6 141 30 29 33 82 104 481 1004
MEDIAN (ppm) 449 9 167 41 34 41 95 121 549 1127
MAX (ppm) 558 13 200 55 40 48 114 140 620 1203
IQR (ppm) 60 1 16 6 3 4 8 9 29 54
COUNT 55 44 46 42 45 47 52 52 55 55
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 361 -1.63 10 0.21 152 -1.06 39 -0.52 37 1.05 43 0.71 99 0.52 131 1.33 567 0.48 1190 1.63 AR ICP
COMLAB 380 -1.28 11 0.91 146 -1.47 41 -0.12 35 0.27 41 0.10 99 0.52 126 0.64 540 -0.47 1128 0.22 AR ICP
COMLAB 352 -1.80 11 0.91 146 -1.47 37 -0.92 37 1.05 43 0.71 99 0.52 128 0.91 545 -0.29 1170 1.18 AR ICP
COMLAB 363 -1.60 22 3.00 164 -0.23 63 3.00 48 3.00 54 3.00 125 3.00 150 3.00 571 0.63 1154 0.81 AR ES
COMLAB 440 -0.16 8 -1.20 173 0.40 41 -0.12 31 -1.30 38 -0.81 93 -0.35 117 -0.61 522 -1.11 1145 0.61 AR ES
COMLAB 422 -0.50 9 -0.50 167 -0.02 42 0.08 33 -0.52 39 -0.50 96 0.09 120 -0.19 549 -0.15 1110 -0.19 AR ES
COMLAB 416 -0.61 9 -0.50 168 0.05 41 -0.12 35 0.27 42 0.41 92 -0.49 117 -0.61 534 -0.68 1190 1.63 AR ES
COMLAB 472 0.43 9 -0.50 185 1.22 44 0.48 35 0.27 41 0.10 93 -0.35 123 0.22 567 0.48 1130 0.27 AR ICP
COMLAB 443 -0.11 10 0.21 175 0.53 42 0.08 34 -0.13 40 -0.20 91 -0.64 115 -0.89 561 0.27 1170 1.18 AR ES
COMLAB 428 -0.39 9 -0.50 165 -0.16 40 -0.32 33 -0.52 39 -0.50 96 0.09 118 -0.47 547 -0.22 1138 0.45 AR ES
COMLAB 436 -0.24 4 -3.00 159 -0.57 36 -1.11 31 -1.30 36 -1.42 88 -1.07 114 -1.02 543 -0.36 1170 1.18 AR ES
COMLAB 431 -0.33 10 0.21 190 1.57 39 -0.52 33 -0.52 39 -0.50 87 -1.22 114 -1.02 555 0.06 1120 0.04 AR ES
COMLAB 411 -0.70 nr nr 173 0.40 42 0.08 33 -0.52 39 -0.50 91 -0.64 119 -0.33 543 -0.36 1080 -0.87 AR AAS
COMLAB 450 0.02 9 -0.50 178 0.74 42 0.08 34 -0.13 40 -0.20 90 -0.78 121 -0.05 541 -0.44 1095 -0.53 AR AAS
COMLAB 429 -0.37 10 0.21 170 0.19 41 -0.12 33 -0.52 39 -0.50 90 -0.78 118 -0.47 540 -0.47 1135 0.38 AR ES
COMLAB 401 -0.89 9 -0.50 163 -0.30 42 0.08 33 -0.52 39 -0.50 89 -0.93 113 -1.16 526 -0.97 1080 -0.87 AR MS
COMLAB 315 -2.49 8 -1.20 159 -0.57 64 3.00 25 -3.00 63 3.00 109 1.96 133 1.61 522 -1.11 1036 -1.87 AR ES
COMLAB 447 -0.03 10 0.28 146 -1.49 36 -1.13 37 1.17 40 -0.20 94 -0.16 122 0.03 544 -0.32 1145 0.60 AR ICP
COMLAB 440 -0.16 6 -2.60 160 -0.50 37 -0.92 32 -0.91 38 -0.81 94 -0.20 125 0.50 569 0.55 1189 1.61 AR ES
COMLAB 449 0.00 11 1.05 162 -0.37 41 -0.16 33 -0.36 42 0.35 98 0.42 120 -0.19 524 -1.04 1060 -1.33 AR MS
COMLAB 484 0.66 9 -0.50 255 3.00 91 3.00 34 -0.13 44 1.02 100 0.66 113 -1.16 589 1.26 1130 0.27 AR ICP
COMLAB 475 0.48 9 -0.36 233 3.00 48 1.28 34 0.03 38 -0.86 127 3.00 140 2.59 935 3.00 1515 3.00 AR,MICR ES
COMLAB 253 -3.00 <1 -3.00 <1 -3.00 <1 -3.00 <1 -3.00 <1 -3.00 <1 -3.00 <1 -3.00 110 -3.00 947 -3.00 AR ES
COMLAB 450 0.02 9 -0.50 184 1.16 60 3.00 35 0.27 41 0.10 96 0.09 122 0.08 567 0.48 1172 1.22 AR ES
COMLAB 489 0.74 9 -0.50 190 1.59 45 0.76 36 0.62 37 -1.02 92 -0.45 125 0.50 567 0.48 1118 -0.01 AR ES
COMLAB 478 0.54 10 0.21 172 0.33 46 0.88 34 -0.13 42 0.41 93 -0.35 118 -0.47 540 -0.47 1103 -0.35 AR ES
COMLAB 485 0.67 113 3.00 245 3.00 <20 -3.00 <20 -3.00 <20 -3.00 95 -0.06 <20 -3.00 55 -3.00 1141 0.52 3A ES
COMLAB 464 0.27 9 -0.50 168 0.01 48 1.28 33 -0.71 40 -0.20 90 -0.85 117 -0.68 540 -0.47 1115 -0.07 AR ES
COMLAB 472 0.43 9 -0.50 174 0.46 43 0.28 35 0.27 42 0.41 93 -0.35 133 1.61 589 1.26 1119 0.02 AR ES
COMLAB 501 0.97 9 -0.50 154 -0.92 38 -0.72 34 -0.13 39 -0.50 92 -0.49 118 -0.47 547 -0.22 1132 0.31 AR ES
COMLAB 369 -1.49 7 -1.90 159 -0.57 31 -2.11 26 -3.00 30 -3.00 99 0.52 127 0.78 527 -0.93 1087 -0.71 AR AAS
COMLAB 514 1.21 10 0.21 266 3.00 82 3.00 38 1.44 45 1.32 99 0.52 125 0.50 559 0.20 1159 0.93 3A ICP
COMLAB 396 -0.98 9 -0.50 160 -0.50 42 0.08 30 -1.70 33 -2.33 86 -1.36 113 -1.16 547 -0.22 1034 -1.92 AR ICP
COMLAB 428 -0.39 12 1.61 171 0.26 42 0.08 38 1.44 52 3.00 103 1.10 128 0.91 549 -0.15 1090 -0.64 AR ES
COMLAB 440 -0.16 94 3.00 240 3.00 95 3.00 35 0.27 39 -0.50 91 -0.64 119 -0.33 545 -0.29 1070 -1.10 AR MS
COMLAB 317 -2.45 26 3.00 142 -1.75 38 -0.72 32 -0.91 45 1.32 98 0.37 113 -1.16 489 -2.28 1004 -2.60 AR ES
COMLAB 455 0.12 10 -0.10 167 -0.02 41 -0.10 33 -0.62 42 0.32 102 1.02 119 -0.36 558 0.18 1136 0.40 AR ES
COMLAB 386 -1.17 9 -0.50 150 -1.20 38 -0.72 32 -0.91 37 -1.11 84 -1.65 108 -1.85 503 -1.78 1022 -2.19 AR ES
COMLAB 456 0.13 9 -0.50 173 0.40 44 0.48 36 0.66 43 0.71 96 0.09 121 -0.05 568 0.52 1127 0.20 AR ES
COMLAB 503 1.01 22 3.00 259 3.00 116 3.00 54 3.00 66 3.00 135 3.00 180 3.00 620 2.36 1186 1.54 3A ICP
MINELAB 529 1.49 10 0.21 183 1.07 45 0.76 35 0.26 41 0.10 98 0.37 125 0.50 527 -0.92 1079 -0.90 AR AAS
MINELAB 528 1.47 11 1.09 211 3.00 62 3.00 42 3.00 48 2.26 108 1.79 135 1.86 602 1.72 1203 1.93 AR ICP
MINELAB 432 -0.31 12 1.78 1142 3.00 92 3.00 48 3.00 43 0.77 83 -1.79 280 3.00 481 -2.57 144 -3.00 AR AAS
MINELAB 512 1.18 <50 bld 269 3.00 101 3.00 <50 bld <50 bld 97 0.23 125 0.50 608 1.93 1146 0.63 3A AAS
MINELAB <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld 600 1.65 1100 -0.42 3A AAS
MINELAB 516 1.25 15 3.00 237 3.00 73 3.00 39 1.84 46 1.63 99 0.52 131 1.33 596 1.51 1099 -0.44 3A ES
MINELAB 481 0.61 9 -0.64 173 0.38 50 1.59 29 -1.97 39 -0.41 90 -0.74 117 -0.61 550 -0.12 1137 0.42 ICP
MINELAB 440 -0.16 10 0.14 166 -0.12 46 0.80 36 0.63 42 0.51 94 -0.20 119 -0.36 522 -1.09 1061 -1.31 AR ES
MINELAB nr nr 12 1.47 151 -1.13 37 -0.99 38 1.40 42 0.53 111 2.28 132 1.49 539 -0.52 1155 0.84 AR MS
MINELAB 436 -0.24 11 1.24 141 -1.83 34 -1.54 33 -0.42 40 -0.33 96 0.03 126 0.63 547 -0.24 1131 0.28 AR ES
MINELAB 421 -0.51 <17 bld 191 1.67 58 3.00 40 2.23 43 0.60 95 -0.04 127 0.74 557 0.14 1078 -0.91 AR ES
MINELAB 558 2.04 8 -1.55 175 0.55 45 0.58 31 -1.22 34 -1.97 89 -1.00 111 -1.48 556 0.09 1092 -0.60 AR ES
MINELAB 444 -0.09 10 0.21 147 -1.40 30 -2.31 30 -1.70 34 -2.03 82 -1.94 104 -2.41 586 1.16 1153 0.79 AR ES
MINELAB 513 1.20 14 3.00 156 -0.78 41 -0.12 44 3.00 52 3.00 114 2.69 129 1.05 606 1.86 1103 -0.35 AR AAS
MINELAB 510 1.14 bld bld 185 1.22 bld bld bld bld bld bld bld bld 119 -0.33 570 0.59 1106 -0.28 AR AAS
MINELAB 508 1.11 13 2.24 185 1.21 51 1.85 38 1.29 41 -0.02 90 -0.77 112 -1.34 569 0.56 1120 0.03 3A AAS
MINELAB 459 0.18 13 1.96 200 2.25 48 1.30 42 3.00 48 2.33 111 2.18 120 -0.21 570 0.57 1127 0.21 3A AAS
MINELAB 461 0.23 11 0.56 170 0.15 41 -0.05 33 -0.60 39 -0.44 97 0.26 123 0.22 530 -0.82 1068 -1.13 AR AAS
MINELAB 531 1.53 10 0.30 184 1.14 55 2.64 38 1.52 45 1.46 101 0.81 122 0.07 564 0.37 1139 0.46 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 25
Zinc Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Zinc Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 26
Nickel (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 23 5 829 743 21 21 21 20 265 563
STDEV (ppm) 4 1 44 39 2 2 2 2 12 32
95% CI (ppm) 1 0 11 10 1 0 0 0 3 8
95% CI (%) 4.31% 4.37% 1.36% 1.36% 2.50% 2.14% 2.08% 2.32% 1.18% 1.45% Nickel Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 14 4 717 646 17 18 17 16 234 480
MEDIAN (ppm) 23 5 834 743 21 21 21 20 266 559
MAX (ppm) 32 6 921 842 26 25 25 24 289 644
IQR (ppm) 4 1 62 41 2 2 2 2 18 38
COUNT 50 42 59 60 54 50 54 53 57 59
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 28 1.44 7 3.00 846 0.39 743 0.01 23 1.35 24 1.79 24 1.80 23 1.76 261 -0.31 572 0.28 4A ES
COMLAB 22 -0.26 5 0.36 825 -0.09 757 0.36 22 0.63 22 0.55 23 1.30 21 0.58 275 0.87 553 -0.32 4A ICP
COMLAB 25 0.59 5 0.36 829 0.01 760 0.44 24 1.66 23 1.17 25 2.54 24 2.34 277 1.04 556 -0.23 4A ICP
COMLAB 22 -0.26 5 0.36 793 -0.81 731 -0.30 25 2.18 24 1.79 21 0.06 20 0.00 270 0.45 532 -0.99 4A ICP
COMLAB 20 -0.83 <10 bld 790 -0.88 698 -1.13 19 -0.82 19 -1.62 19 -1.12 19 -0.41 249 -1.32 528 -1.11 4A ES
COMLAB 27 1.16 4 -1.12 801 -0.63 719 -0.60 23 1.14 21 -0.07 24 1.92 23 1.76 250 -1.23 534 -0.92 4A ES
COMLAB 23 0.02 5 0.36 888 1.35 757 0.36 20 -0.41 22 0.55 22 0.68 20 0.00 274 0.78 606 1.35 4A ES
COMLAB 19 -1.11 7 3.00 890 1.40 768 0.64 19 -0.93 20 -0.69 19 -1.18 18 -1.18 282 1.46 582 0.59 4A ES
COMLAB 7 -3.00 5 0.36 845 0.37 762 0.49 19 -0.93 18 -1.93 19 -1.18 19 -0.59 265 0.03 572 0.28 4A ES
COMLAB 20 -0.83 4 -1.12 904 1.71 762 0.49 19 -0.93 19 -1.31 22 0.68 17 -1.76 280 1.29 534 -0.92 4A ES
COMLAB 23 0.02 4 -1.12 892 1.44 842 2.51 21 0.11 20 -0.69 20 -0.56 21 0.58 270 0.45 613 1.57 4A ES
COMLAB 28 1.44 2 -3.00 897 1.55 808 1.65 19 -0.93 20 -0.69 19 -1.18 18 -1.18 283 1.54 595 1.00 4A ICP
COMLAB 11 -3.00 4 -1.12 874 1.03 802 1.50 20 -0.41 19 -1.31 20 -0.56 19 -0.59 302 3.00 606 1.35 4A ES
COMLAB 25 0.59 5 0.36 795 -0.77 700 -1.08 20 -0.41 25 2.41 20 -0.56 20 0.00 260 -0.39 545 -0.58 4A ES
COMLAB 18 -1.39 6 1.83 867 0.87 786 1.09 17 -1.96 18 -1.93 18 -1.80 16 -2.35 284 1.62 623 1.88 4A ES
COMLAB 8 -3.00 5 0.36 861 0.73 748 0.13 20 -0.41 19 -1.31 21 0.06 20 0.00 276 0.95 574 0.34 4A ES
COMLAB 23 0.02 5 0.36 855 0.60 756 0.33 20 -0.41 22 0.55 21 0.06 18 -1.18 264 -0.06 564 0.02 4A ES
COMLAB 19 -1.11 4 -1.12 846 0.39 759 0.41 19 -0.93 20 -0.69 18 -1.80 18 -1.18 253 -0.98 538 -0.80 4A ES
COMLAB 28 1.44 4 -1.12 838 0.21 832 2.26 20 -0.41 20 -0.69 22 0.68 22 1.17 289 2.04 625 1.95 4A ES
COMLAB 25 0.45 4 -0.68 879 1.14 805 1.58 21 -0.05 21 -0.07 21 -0.13 21 0.76 270 0.45 589 0.81 4A MS
COMLAB 22 -0.20 4 -1.71 921 2.11 822 2.01 22 0.78 22 0.61 22 0.49 21 0.64 307 3.00 625 1.94 5A ES
COMLAB 26 0.99 5 -0.38 827 -0.03 724 -0.47 21 0.21 22 0.36 21 -0.06 20 -0.06 241 -2.02 545 -0.59 4A ICP
COMLAB 24 0.31 7 3.00 840 0.26 752 0.23 22 0.63 22 0.55 22 0.68 20 0.00 276 0.95 559 -0.13 4A ES
COMLAB 28 1.44 <20 bld 860 0.71 740 -0.07 20 -0.41 22 0.55 20 -0.56 20 0.00 270 0.45 580 0.53 NAA
COMLAB 22 -0.26 6 1.83 814 -0.34 752 0.23 18 -1.44 20 -0.69 22 0.68 16 -2.35 274 0.78 568 0.15 4A ES
COMLAB 19 -1.11 5 -0.23 828 -0.02 703 -1.01 21 0.00 22 0.61 21 0.18 20 0.11 247 -1.46 549 -0.46 4A MS
COMLAB 24 0.39 6 1.53 797 -0.72 725 -0.45 22 0.68 22 0.55 22 0.74 23 1.64 254 -0.90 537 -0.83 4A ES
COMLAB 22 -0.26 <5 bld 815 -0.31 720 -0.58 20 -0.41 21 -0.07 20 -0.56 19 -0.59 265 0.03 528 -1.11 4A ICP
COMLAB 42 3.00 10 3.00 790 -0.88 707 -0.91 33 3.00 35 3.00 34 3.00 29 3.00 250 -1.23 495 -2.15 4A ES
COMLAB 22 -0.37 5 0.50 831 0.05 737 -0.16 20 -0.31 20 -0.57 19 -0.93 19 -0.47 267 0.21 553 -0.31 3A,MICR ES
COMLAB 24 0.31 4 -1.12 784 -1.02 695 -1.21 22 0.63 25 2.41 21 0.06 20 0.00 260 -0.39 550 -0.42 4A MS,AAS
COMLAB 24 0.34 4 -1.12 856 0.62 741 -0.03 21 -0.10 21 -0.38 21 -0.19 20 -0.06 266 0.09 567 0.11 4A ES
COMLAB 24 0.25 5 0.06 856 0.62 745 0.06 21 -0.10 21 -0.32 21 -0.06 20 0.23 266 0.11 537 -0.83 4A MS
COMLAB 23 0.02 4 -1.12 840 0.26 729 -0.35 19 -0.93 20 -0.69 21 0.06 19 -0.59 268 0.28 542 -0.67 4A ES
COMLAB 24 0.36 5 -0.23 841 0.28 743 -0.01 21 0.16 22 0.36 21 0.31 21 0.64 279 1.21 563 -0.01 4A MS
COMLAB 26 0.87 5 0.36 875 1.05 813 1.78 27 3.00 23 1.17 20 -0.56 21 0.58 256 -0.73 567 0.12 4A ES
COMLAB 25 0.59 5 0.36 861 0.73 792 1.25 22 0.63 22 0.55 22 0.68 20 0.00 269 0.36 626 1.98 4A ICP
COMLAB 19 -1.17 5 0.80 843 0.33 733 -0.24 20 -0.51 21 -0.19 20 -0.87 19 -0.41 273 0.71 553 -0.32 4A ES
COMLAB 23 0.02 4 -1.12 822 -0.15 742 -0.02 21 0.11 22 0.55 21 0.06 20 0.00 280 1.29 597 1.06 4A ES
COMLAB 19 -1.11 5 0.36 717 -2.55 646 -2.45 21 0.11 20 -0.69 21 0.06 19 -0.59 248 -1.40 525 -1.21 4A ES
COMLAB 32 2.57 8 3.00 858 0.67 767 0.61 26 2.70 27 3.00 26 3.00 26 3.00 266 0.11 588 0.78 4A ICP
COMLAB 21 -0.46 5 -0.23 858 0.67 772 0.73 20 -0.56 20 -0.44 20 -0.56 21 0.41 256 -0.71 557 -0.20 4A MS
COMLAB 28 1.44 5 0.36 834 0.12 742 -0.02 22 0.63 21 -0.07 21 0.06 20 0.00 270 0.45 566 0.09 4A ES
COMLAB 46 3.00 1 -3.00 1004 3.00 887 3.00 37 3.00 42 3.00 302 3.00 32 3.00 306 3.00 644 2.55 4A
COMLAB 14 -2.42 6 1.83 791 -0.87 717 -0.64 21 0.00 16 -3.00 21 0.31 21 0.70 261 -0.28 520 -1.37 4A ICP
COMLAB 18 -1.42 12 3.00 725 -2.36 651 -2.31 21 0.09 26 3.00 23 1.26 20 -0.04 251 -1.17 537 -0.83 4A AAS
COMLAB 27 1.16 17 3.00 791 -0.86 732 -0.27 27 3.00 28 3.00 30 3.00 30 3.00 252 -1.07 551 -0.39 4A,FUS AAS,MS
COMLAB 16 -1.96 <5 bld 810 -0.43 695 -1.21 23 1.14 22 0.55 19 -1.18 20 0.00 274 0.78 585 0.69 4A AAS
COMLAB 11 -3.00 <5 bld 792 -0.84 721 -0.55 17 -1.96 19 -1.31 17 -2.42 17 -1.76 260 -0.39 558 -0.17 4A AAS
COMLAB 21 -0.54 6 1.83 970 3.00 722 -0.53 19 -0.93 23 1.17 20 -0.56 19 -0.59 264 -0.06 576 0.40 4A MS
COMLAB 8 -3.00 5 -0.23 760 -1.57 699 -1.11 18 -1.24 14 -3.00 21 0.25 13 -3.00 246 -1.57 450 -3.00 4A MS
COMLAB 27 1.16 7 3.00 809 -0.45 746 0.08 24 1.66 20 -0.69 23 1.30 23 1.76 261 -0.31 586 0.72 4A ES
COMLAB 18 -1.30 5 0.89 865 0.84 768 0.63 20 -0.48 21 -0.03 20 -0.32 21 0.44 265 0.06 576 0.40 4A ES
COMLAB 11 -3.00 4 -1.12 770 -1.34 761 0.46 18 -1.44 19 -1.31 20 -0.56 19 -0.59 268 0.28 544 -0.61 4A ES
COMLAB 22 -0.26 6 1.83 804 -0.56 764 0.54 21 0.11 22 0.55 22 0.68 20 0.00 253 -0.98 539 -0.76 4A ES
COMLAB 18 -1.39 1 -3.00 825 -0.09 788 1.15 17 -1.96 16 -3.00 21 0.06 17 -1.76 285 1.71 612 1.54 4A ICP
COMLAB 22 -0.26 4 -1.12 856 0.62 757 0.36 20 -0.41 20 -0.69 21 0.06 20 0.00 264 -0.06 549 -0.45 4A ES
COMLAB nr nr nr nr 845 0.37 754 0.28 nr nr nr nr nr nr nr nr 251 -1.15 578 0.46 4A AAS
MINELAB <100 bld <100 bld 763 -1.50 671 -1.82 <100 bld <100 bld <100 bld <100 bld 159 -3.00 454 -3.00 FUS ES
MINELAB 41 3.00 26 3.00 873 1.02 689 -1.37 52 3.00 42 3.00 45 3.00 38 3.00 316 3.00 582 0.59 4A ES
MINELAB 21 -0.54 4 -1.12 822 -0.15 747 0.11 24 1.66 22 0.55 19 -1.18 19 -0.59 282 1.46 556 -0.23 4A ES
MINELAB <20 bld 20 3.00 737 -2.08 701 -1.07 24 1.66 31 3.00 25 2.35 23 1.93 234 -2.58 480 -2.62 3A,MICR ES
MINELAB 23 0.02 5 -0.09 772 -1.29 738 -0.13 21 0.11 21 -0.13 21 0.00 21 0.52 267 0.20 560 -0.10 4A MS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 27
Nickel Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Nickel Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
ZARAZMA TEHRAN
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Zarazma Minerals Studies Company ReportPage 28
Nickel (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 20 5 753 668 20 20 20 20 252 556
STDEV (ppm) 4 1 80 64 1 1 2 1 17 27
95% CI (ppm) 1 0 22 18 0 0 0 0 5 7
95% CI (%) 5.17% 4.47% 2.93% 2.63% 1.91% 1.54% 2.15% 1.23% 1.85% 1.34% Nickel Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 11 3 553 507 17 18 17 18 214 505
MEDIAN (ppm) 21 5 759 676 21 21 20 20 254 555
MAX (ppm) 27 6 872 783 23 22 24 21 294 625
IQR (ppm) 5 1 108 89 2 1 2 1 20 35
COUNT 46 43 52 52 48 46 48 42 51 51
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 19 -0.26 3 -2.29 758 0.07 675 0.12 19 -0.91 20 -0.35 18 -1.42 19 -1.05 268 0.98 576 0.75 AR ICP
COMLAB 23 0.88 3 -2.29 806 0.67 739 1.11 21 0.57 21 0.58 22 1.22 20 0.21 265 0.80 598 1.57 AR ICP
COMLAB 20 0.02 4 -0.80 667 -1.06 582 -1.34 18 -1.65 19 -1.28 19 -0.76 19 -1.05 224 -1.64 517 -1.46 AR ICP
COMLAB 15 -1.40 10 3.00 569 -2.28 540 -1.99 23 2.05 25 3.00 24 2.54 24 3.00 231 -1.22 518 -1.42 AR ES
COMLAB 6 -3.00 5 0.69 839 1.08 716 0.76 18 -1.65 18 -2.21 18 -1.42 17 -3.00 253 0.09 565 0.34 AR ES
COMLAB 23 0.88 5 0.69 836 1.04 731 0.99 21 0.57 21 0.58 20 -0.10 20 0.21 261 0.56 556 0.00 AR ES
COMLAB 22 0.59 6 2.18 828 0.94 719 0.80 20 -0.17 21 0.58 22 1.22 20 0.21 245 -0.39 580 0.90 AR ES
COMLAB 25 1.44 4 -0.80 845 1.15 767 1.55 21 0.57 21 0.58 21 0.56 20 0.21 280 1.69 573 0.63 AR ICP
COMLAB 13 -1.96 5 0.69 831 0.98 751 1.30 21 0.57 21 0.58 20 -0.10 19 -1.05 264 0.74 577 0.78 AR ES
COMLAB 8 -3.00 5 0.69 802 0.62 691 0.36 19 -0.91 19 -1.28 19 -0.76 19 -1.05 257 0.33 531 -0.93 AR ES
COMLAB 23 0.88 4 -0.80 831 0.98 729 0.96 20 -0.17 20 -0.35 21 0.56 19 -1.05 254 0.15 564 0.30 AR ES
COMLAB 23 0.88 9 3.00 784 0.39 687 0.30 20 -0.17 20 -0.35 20 -0.10 18 -2.30 263 0.68 554 -0.08 AR ES
COMLAB 20 0.02 4 -0.80 850 1.21 750 1.29 20 -0.17 20 -0.35 20 -0.10 20 0.21 264 0.74 578 0.82 AR AAS
COMLAB 24 1.16 4 -0.80 851 1.23 737 1.08 21 0.57 22 1.51 22 1.22 20 0.21 253 0.09 596 1.49 AR ES
COMLAB 24 1.02 4 -0.65 841 1.10 746 1.22 21 0.72 21 0.95 21 0.29 20 0.08 260 0.50 568 0.45 AR MS
COMLAB 14 -1.65 5 -0.06 633 -1.49 568 -1.56 21 0.28 20 -0.17 19 -0.83 20 0.58 241 -0.61 625 2.58 AR ES
COMLAB 30 2.89 33 3.00 600 -1.90 547 -1.88 23 2.05 22 1.04 37 3.00 21 1.97 195 -3.00 416 -3.00 AR AAS
COMLAB 23 0.99 5 0.09 799 0.57 686 0.29 21 0.79 21 0.76 20 0.03 20 0.71 250 -0.08 550 -0.21 AR ICP
COMLAB 21 0.31 4 -0.80 821 0.85 721 0.83 21 0.57 21 0.58 20 -0.10 21 1.46 256 0.27 581 0.93 AR ES
COMLAB 16 -1.20 5 -0.06 619 -1.67 579 -1.39 19 -0.69 20 -0.54 20 -0.23 20 -0.17 226 -1.53 536 -0.77 AR MS
COMLAB 20 0.02 <10 bld 800 0.59 730 0.97 20 -0.17 30 3.00 30 3.00 20 0.21 260 0.50 560 0.15 AR ICP
COMLAB 14 -1.66 3 -1.83 758 0.07 659 -0.14 15 -3.00 16 -3.00 15 -3.00 13 -3.00 228 -1.43 454 -3.00 AR,MICR ES
COMLAB 27 1.92 9 3.00 752 0.00 684 0.26 21 0.42 21 0.58 22 1.09 21 1.36 271 1.18 526 -1.10 AR ES
COMLAB 23 0.88 4 -0.80 766 0.17 678 0.16 21 0.57 21 0.58 21 0.56 20 0.21 262 0.62 564 0.30 AR ES
COMLAB 17 -0.86 4 -0.89 746 -0.08 687 0.31 19 -0.98 19 -1.75 19 -1.02 19 -0.92 261 0.57 545 -0.41 AR ES
COMLAB 21 0.31 4 -0.80 770 0.22 676 0.13 21 0.57 21 0.58 21 0.56 20 0.21 238 -0.80 550 -0.22 AR ES
COMLAB <100 bld <100 bld 714 -0.48 654 -0.21 <100 bld <100 bld <100 bld <100 bld 280 1.69 540 -0.60 3A ES
COMLAB 23 0.88 5 0.61 726 -0.33 646 -0.34 20 0.02 21 0.67 20 -0.10 20 0.21 327 3.00 576 0.73 AR ES
COMLAB 22 0.59 5 1.28 769 0.21 654 -0.21 21 0.57 20 -0.45 20 0.03 21 0.96 249 -0.16 509 -1.75 AR MS
COMLAB 22 0.59 5 0.69 721 -0.39 625 -0.67 21 0.57 20 -0.35 21 0.56 20 0.21 258 0.39 551 -0.19 AR ES
COMLAB 13 -1.96 5 0.69 554 -2.47 507 -2.51 19 -0.91 21 0.58 18 -1.42 21 1.46 219 -1.93 517 -1.46 AR AAS
COMLAB 22 0.59 6 2.18 837 1.05 742 1.16 20 -0.17 21 0.58 21 0.56 20 0.21 264 0.74 583 1.01 3A ICP
COMLAB 11 -2.53 5 0.54 714 -0.48 636 -0.49 19 -0.76 19 -1.19 19 -0.69 19 -1.30 235 -0.96 505 -1.89 AR ICP
COMLAB 21 0.31 9 3.00 722 -0.38 646 -0.34 23 2.05 22 1.51 20 -0.10 20 0.21 279 1.63 576 0.75 AR ES
COMLAB 22 0.59 5 0.69 759 0.08 673 0.08 22 1.31 21 0.58 21 0.56 21 1.46 257 0.33 538 -0.67 AR MS
COMLAB 18 -0.54 5 0.69 747 -0.07 688 0.32 22 1.31 22 1.51 21 0.56 19 -1.05 248 -0.21 553 -0.11 AR ES
COMLAB 18 -0.60 5 0.75 782 0.37 696 0.44 20 -0.22 21 0.25 21 0.69 19 -0.63 252 0.02 559 0.10 AR ES
COMLAB 18 -0.54 4 -0.80 670 -1.03 586 -1.27 19 -0.91 19 -1.28 18 -1.42 18 -2.30 229 -1.34 518 -1.42 AR ES
COMLAB 20 0.02 4 -0.80 799 0.58 694 0.41 21 0.57 20 -0.35 20 -0.10 20 0.21 259 0.45 565 0.34 AR ES
COMLAB 31 3.00 1 -3.00 872 1.49 783 1.80 17 -2.39 20 -0.35 17 -2.08 17 -3.00 267 0.92 592 1.34 3A ICP
COMLAB 7 -3.00 <1 -3.00 553 -2.48 550 -1.84 14 -3.00 20 -0.35 14 -3.00 15 -3.00 214 -2.23 541 -0.56 AR AAS
MINELAB 14 -1.72 4 -0.37 730 -0.28 651 -0.27 18 -1.42 19 -1.38 21 0.80 17 -3.00 257 0.30 541 -0.56 AR ES
MINELAB 21 0.35 5 1.21 870 1.46 762 1.47 26 3.00 24 3.00 23 2.02 23 3.00 294 2.51 616 2.23 AR ICP
MINELAB <10 bld 4 -0.80 52 -3.00 46 -3.00 57 3.00 38 3.00 73 3.00 32 3.00 50 -3.00 35 -3.00 3A ES
MINELAB 23 0.85 5 0.39 843 1.13 746 1.22 21 0.79 25 3.00 20 0.10 20 0.58 243 -0.49 555 -0.04 ICP
MINELAB 18 -0.53 5 0.41 661 -1.14 593 -1.17 19 -0.77 22 1.29 19 -0.66 19 -1.09 232 -1.15 567 0.42 AR ES
MINELAB 19 -0.26 5 0.46 721 -0.40 632 -0.56 21 0.71 22 1.66 21 0.85 20 0.71 258 0.37 592 1.36 AR MS
MINELAB 18 -0.43 5 1.03 702 -0.62 617 -0.79 22 1.31 21 0.63 21 0.41 20 0.61 235 -0.97 540 -0.60 AR ES
MINELAB 20 0.07 <5 bld 693 -0.74 607 -0.94 21 0.59 21 0.47 20 -0.07 21 1.33 242 -0.59 531 -0.93 3A ES
MINELAB 21 0.31 5 0.69 759 0.08 660 -0.12 21 0.57 21 0.58 21 0.56 20 0.21 251 -0.03 547 -0.34 AR ES
MINELAB <5 -3.00 <5 bld 736 -0.21 670 0.04 18 -1.65 19 -1.28 17 -2.08 16 -3.00 253 0.09 569 0.49 AR ES
MINELAB 21 0.17 5 0.69 674 -0.98 601 -1.04 19 -0.91 19 -1.28 18 -1.42 18 -2.30 260 0.50 522 -1.27 AR ICP
MINELAB 22 0.45 5 -0.06 763 0.13 691 0.36 21 0.65 21 0.30 21 0.43 20 0.71 256 0.27 544 -0.44 AR MS
MINELAB 20 0.08 5 0.14 826 0.91 657 -0.17 21 0.32 21 0.80 21 0.68 21 1.11 242 -0.59 567 0.42 AR ICPMINELAB 13 -1.92 4 -0.16 643 -1.36 575 -1.45 18 -1.91 18 -2.32 18 -1.62 17 -3.00 224 -1.64 531 -0.95 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 29
Nickel Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Nickel Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Zarazma Minerals Studies Company ReportPage 30
Arsenic (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 657 42 309 32 2 3 3 2 450 142
STDEV (ppm) 36 3 14 2 0 2 2 1 20 8
95% CI (ppm) 10 1 4 1 0 1 1 1 5 2
95% CI (%) 1.47% 1.91% 1.22% 2.01% 10.67% 26.69% 30.99% 27.36% 1.18% 1.48% Arsenic Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 560 36 278 26 1 0 0 0 402 124
MEDIAN (ppm) 660 43 311 32 2 2 2 2 450 143
MAX (ppm) 729 46 341 38 2 8 7 5 504 156
IQR (ppm) 47 3 15 3 1 3 2 1 23 10
COUNT 55 39 51 53 18 26 24 21 53 52
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 657 0.00 46 1.36 317 0.57 38 2.41 1 -1.01 <0.5 bld 1 -0.66 <0.5 bld 452 0.09 150 0.97 NAA
COMLAB 571 -2.37 39 -1.28 304 -0.38 26 -2.48 <3 bld <3 bld <3 bld <3 bld 406 -2.26 96 -3.00 4A ICP
COMLAB 609 -1.32 29 -3.00 296 -0.97 32 0.07 <3 bld 4 0.36 <3 bld <3 bld 351 -3.00 100 -3.00 4A ICP
COMLAB 660 0.09 44 0.69 314 0.35 32 0.07 <20 bld <20 bld <20 bld <20 bld 455 0.24 150 0.97 4A ES
COMLAB 659 0.06 37 -2.07 316 0.50 33 0.50 <5 bld <5 bld <5 bld <5 bld 457 0.34 141 -0.19 4A ES
COMLAB 682 0.69 32 -3.00 315 0.42 34 0.92 <5 bld <5 bld <5 bld 5 2.06 455 0.24 141 -0.19 4A ES
COMLAB 684 0.75 44 0.69 312 0.20 35 1.35 8 3.00 7 1.72 7 2.23 8 3.00 485 1.77 145 0.33 4A ES
COMLAB 611 -1.27 44 0.69 314 0.35 33 0.50 6 3.00 7 1.72 6 1.72 7 3.00 443 -0.37 150 0.97 4A ES
COMLAB 663 0.17 41 -0.49 308 -0.09 30 -0.78 <5 bld <5 bld <5 bld <5 bld 440 -0.53 132 -1.36 4A ES
COMLAB 688 0.86 45 1.09 312 0.20 35 1.35 <5 bld 5 0.81 <5 bld <5 bld 415 -1.80 151 1.10 4A ES
COMLAB 682 0.69 21 -3.00 312 0.20 32 0.07 <5 bld <5 bld <5 bld <5 bld 468 0.90 143 0.07 4A ICP
COMLAB 688 0.86 31 -3.00 320 0.79 32 0.07 <5 bld <5 bld <5 bld <5 bld 454 0.19 151 1.10 4A ES
COMLAB 690 0.92 30 -3.00 320 0.79 40 3.00 <10 bld <10 bld <10 bld <10 bld 480 1.52 150 0.97 4A ES
COMLAB 677 0.56 45 1.09 310 0.06 30 -0.78 <5 bld <5 bld 6 1.72 5 2.06 461 0.55 145 0.33 4A ES
COMLAB 657 0.00 41 -0.49 311 0.13 31 -0.35 <5 bld <5 bld <5 bld <5 bld 441 -0.47 141 -0.19 4A ES
COMLAB 669 0.34 41 -0.49 308 -0.09 31 -0.35 5 3.00 <5 bld <5 bld <5 bld 446 -0.22 144 0.20 4A ES
COMLAB 629 -0.77 42 -0.10 301 -0.60 33 0.50 <5 bld <5 bld <5 bld <5 bld 440 -0.53 140 -0.32 4A ES
COMLAB 721 1.77 43 0.30 296 -0.97 32 0.07 <5 bld <5 bld <5 bld <5 bld 460 0.50 155 1.62 4A ES
COMLAB 675 0.50 40 -0.73 305 -0.31 33 0.67 2 -0.15 2 -0.60 2 -0.56 1 -0.87 463 0.65 154 1.49 4A MS
COMLAB 607 -1.39 14 -3.00 208 -3.00 28 -1.67 4 3.00 5 0.63 5 1.27 5 1.76 351 -3.00 96 -3.00 5A ES
COMLAB 706 1.35 37 -1.91 283 -1.96 32 0.12 2 0.43 2 -0.78 2 -0.56 2 -0.21 423 -1.39 129 -1.82 4A ICP
COMLAB 674 0.47 40 -0.89 312 0.20 30 -0.78 2 1.29 2 -0.56 3 0.20 2 -0.14 455 0.24 136 -0.84 4A MS
COMLAB 700 1.19 46 1.48 331 1.60 33 0.50 1 -0.72 2 -0.69 1 -0.71 1 -0.65 460 0.50 146 0.46 NAA
COMLAB 682 0.69 40 -0.89 296 -0.97 30 -0.78 1 -1.58 2 -0.56 2 -0.31 2 -0.14 439 -0.58 150 0.97 4A MS
COMLAB 616 -1.12 34 -3.00 315 0.45 31 -0.27 1 -0.43 2 -0.56 2 -0.25 2 -0.14 446 -0.20 137 -0.76 4A MS
COMLAB 630 -0.74 43 0.30 310 0.06 31 -0.35 <10 bld <10 bld <10 bld <10 bld 437 -0.68 144 0.20 4A ES
COMLAB 664 0.20 40 -0.89 314 0.35 30 -0.78 <25 bld <25 bld <25 bld <25 bld 438 -0.63 129 -1.75 4A ICP
COMLAB 387 -3.00 22 -3.00 241 -3.00 31 -0.35 10 3.00 8 2.18 11 3.00 12 3.00 353 -3.00 124 -2.40 4A ES
COMLAB 656 -0.03 29 -3.00 301 -0.64 20 -3.00 <5 bld <5 bld <5 bld <5 bld 433 -0.87 131 -1.52 3A,MICR ES
COMLAB 673 0.43 44 0.61 319 0.74 32 0.16 1 -0.72 2 -0.74 1 -0.71 1 -0.72 448 -0.10 144 0.22 4A ES
COMLAB 678 0.58 43 0.10 304 -0.38 32 0.07 2 -0.15 2 -0.56 2 -0.56 2 -0.14 460 0.50 140 -0.32 4A MS
COMLAB 674 0.47 36 -2.46 341 2.33 32 0.07 <10 bld <10 bld <10 bld <10 bld 462 0.60 148 0.72 4A ES
COMLAB 676 0.53 44 0.57 319 0.74 32 0.16 2 -0.15 2 -0.69 2 -0.51 2 -0.50 473 1.16 147 0.53 4A MS
COMLAB 658 0.03 45 1.09 308 -0.09 29 -1.20 2 1.29 2 -0.56 2 -0.31 2 -0.14 469 0.96 141 -0.19 4A MS
COMLAB 724 1.85 44 0.69 320 0.79 35 1.35 2 1.29 3 -0.10 1 -0.81 3 0.59 475 1.26 143 0.07 4A ICP
COMLAB 664 0.19 41 -0.33 315 0.44 29 -1.16 <5 bld <5 bld <5 bld <5 bld 462 0.61 151 1.10 4A ES
COMLAB 667 0.28 12 -3.00 310 0.06 29 -1.20 2 1.29 2 -0.56 2 -0.31 1 -0.87 452 0.09 138 -0.58 4A MS
COMLAB 638 -0.52 10 -3.00 284 -1.85 31 -0.35 <5 bld 8 2.18 <5 bld <5 bld 447 -0.17 143 0.07 4A ES
COMLAB 612 -1.24 12 -3.00 292 -1.26 32 0.07 <10 bld <10 bld <10 bld <10 bld 456 0.29 155 1.62 4A ES
COMLAB 636 -0.58 42 -0.26 300 -0.68 30 -0.86 1 -0.43 2 -0.65 2 -0.51 1 -0.72 436 -0.73 130 -1.62 4A ICP
COMLAB 660 0.09 42 -0.18 310 0.08 33 0.54 2 0.72 2 -0.51 2 -0.51 1 -0.72 436 -0.72 138 -0.61 4A MS
COMLAB 653 -0.11 39 -1.28 313 0.28 30 -0.78 <5 bld <5 bld <5 bld <5 bld 450 -0.01 137 -0.71 4A ES
COMLAB 631 -0.71 43 0.30 311 0.11 35 1.52 6 3.00 <5 bld nr nr nr nr 408 -2.16 142 -0.06 4A ICP
COMLAB 724 1.85 45 1.09 310 0.06 32 0.07 <5 bld <5 bld <5 bld <5 bld 450 -0.01 146 0.46 FUS MS
COMLAB 676 0.53 45 1.09 351 3.00 36 1.77 <15 bld <15 bld <15 bld <15 bld 476 1.31 139 -0.45 4A AAS
COMLAB 636 -0.58 42 -0.10 297 -0.90 30 -0.78 <3 bld <3 bld <3 bld <3 bld 474 1.21 148 0.72 4A ES
COMLAB 636 -0.58 43 0.35 278 -2.32 34 0.75 3 3.00 5 0.71 6 1.83 12 3.00 437 -0.66 146 0.46 4A MS
COMLAB 614 -1.18 52 3.00 313 0.28 38 2.62 <3 bld <3 bld 12 3.00 7 3.00 445 -0.27 147 0.59 4A ES
COMLAB 683 0.72 45 0.94 335 1.88 32 0.27 <3 bld <3 bld <3 bld <3 bld 463 0.66 153 1.37 4A ES
COMLAB 629 -0.77 40 -0.89 293 -1.19 29 -1.20 1 -1.58 2 -0.56 1 -0.81 2 -0.14 443 -0.37 140 -0.32 4A ES
COMLAB 526 -3.00 <5 -3.00 229 -3.00 <5 -3.00 <5 bld 10 3.00 7 2.23 <5 bld 478 1.41 139 -0.45 4A ICP
COMLAB 613 -1.21 46 1.48 322 0.94 29 -1.20 2 1.29 2 -0.56 2 -0.31 2 -0.14 446 -0.22 141 -0.19 4A ES
COMLAB 677 0.56 nr nr 248 -3.00 31 -0.35 nr nr nr nr nr nr nr nr 446 -0.22 126 -2.14 4A AAS
MINELAB 0 -3.00 0 -3.00 0 -3.00 0 -3.00 0 -3.00 0 -1.45 0 -1.30 0 -1.54 0 -3.00 0 -3.00 4A
MINELAB 560 -2.68 31 -3.00 268 -3.00 31 -0.35 <21 bld 31 3.00 <21 bld <21 bld 402 -2.47 136 -0.84 FUS ES
MINELAB 729 2.00 58 3.00 335 1.89 35 1.47 1 -0.69 15 3.00 14 3.00 14 3.00 504 2.72 21 -3.00 4A ES
MINELAB 628 -0.80 26 -3.00 286 -1.70 32 0.07 4 3.00 4 0.36 4 0.71 4 1.32 438 -0.63 144 0.20 4A ES
MINELAB 507 -3.00 23 -3.00 232 -3.00 21 -3.00 <2 bld <2 bld <2 bld <2 bld 331 -3.00 89 -3.00 3A,MICR ES
MINELAB 655 -0.05 42 -0.26 335 1.89 30 -0.99 <10 bld <10 bld <10 bld <10 bld 474 1.19 156 1.75 4A AAS
MINELAB 606 -1.41 <100 bld 288 -1.53 <100 bld <100 bld <100 bld <100 bld <100 bld 434 -0.83 134 -1.12 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted materials. These results do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 31
Arsenic Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Arsenic Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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MINELAB
MINELAB
MINELAB
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MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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MINELAB
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Zarazma Minerals Studies Company ReportPage 32
Arsenic (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 594 10 301 29 2 2 2 2 443 137
STDEV (ppm) 56 2 15 2 1 1 1 1 13 9
95% CI (ppm) 15 0 4 1 0 0 1 0 4 2
95% CI (%) 2.56% 4.79% 1.32% 2.27% 14.00% 16.52% 23.53% 19.93% 0.83% 1.72% Arsenic Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 475 6 268 24 0 0 0 0 408 119
MEDIAN (ppm) 612 9 301 30 2 2 2 2 440 136
MAX (ppm) 693 13 332 36 3 4 6 4 469 159
IQR (ppm) 82 1 17 3 1 1 2 2 20 9
COUNT 53 53 53 52 31 28 29 28 49 53
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 621 0.49 9 -0.33 295 -0.45 30 0.13 2 0.03 2 -0.53 2 -0.37 2 -0.46 435 -0.59 131 -0.64 AR ES
COMLAB 498 -1.71 13 2.05 282 -1.32 33 1.44 3 2.01 <2 bld 6 2.44 <2 bld 437 -0.44 137 0.05 AR ICP
COMLAB 587 -0.12 10 0.27 300 -0.09 25 -1.85 3 2.01 <2 bld <2 bld 3 0.80 464 1.64 122 -1.69 AR ICP
COMLAB 554 -0.71 10 0.27 286 -1.05 27 -1.03 <2 bld <2 bld <2 bld <2 bld 443 0.02 132 -0.53 AR ICP
COMLAB 484 -1.96 11 0.86 268 -2.28 28 -0.61 8 3.00 7 3.00 6 2.44 4 1.70 460 1.33 139 0.28 AR ES
COMLAB 589 -0.08 12 1.46 292 -0.64 31 0.62 2 0.49 <2 bld <2 bld 3 0.80 439 -0.28 146 1.09 AR ES
COMLAB 526 -1.21 11 0.86 309 0.53 32 1.03 4 3.00 2 -0.22 3 0.43 2 -0.10 442 -0.05 139 0.28 AR ES
COMLAB 475 -2.12 9 -0.33 297 -0.30 31 0.62 2 0.49 <2 bld <2 bld 2 -0.10 431 -0.90 139 0.28 AR ES
COMLAB 621 0.49 9 -0.33 303 0.12 31 0.62 <2 bld <2 bld <2 bld <2 bld 448 0.41 136 -0.07 AR ICP
COMLAB 635 0.74 9 -0.33 297 -0.30 29 -0.20 <2 bld <2 bld <2 bld <2 bld 455 0.95 137 0.05 AR ES
COMLAB 532 -1.10 9 -0.33 306 0.32 28 -0.61 <2 bld <2 bld <2 bld <2 bld 448 0.41 138 0.17 AR ES
COMLAB 557 -0.66 10 0.27 297 -0.30 30 0.21 2 0.49 2 -0.22 2 -0.23 <2 bld 438 -0.36 136 -0.07 AR ES
COMLAB 587 -0.12 8 -0.92 294 -0.50 26 -1.44 <2 bld 2 -0.22 2 -0.23 <2 bld 429 -1.06 136 -0.07 AR ES
COMLAB 553 -0.73 9 -0.33 306 0.32 31 0.62 <2 bld <2 bld <2 bld <2 bld 453 0.79 141 0.51 AR ES
COMLAB 529 -1.16 9 -0.27 300 -0.09 33 1.36 1 -0.43 2 -0.53 1 -0.64 1 -0.91 450 0.56 138 0.17 AR MS
COMLAB 330 -3.00 9 -0.33 245 -3.00 24 -2.26 1 -0.58 1 -0.84 1 -0.90 2 -0.46 397 -3.00 120 -1.92 AR ES
COMLAB 642 0.87 9 -0.21 298 -0.21 29 -0.41 1 -0.73 1 -1.15 1 -0.90 1 -0.82 436 -0.50 141 0.47 AR ICP
COMLAB 636 0.76 9 -0.33 312 0.73 31 0.62 <2 bld <2 bld <2 bld <2 bld 451 0.64 140 0.40 AR ES
COMLAB 575 -0.34 9 -0.15 268 -2.30 28 -0.49 1 -0.73 1 -1.77 1 -0.70 1 -1.44 438 -0.36 138 0.17 AR MS
COMLAB 672 1.40 42 3.00 315 0.94 32 1.03 1 -1.03 2 -0.22 3 0.43 2 -0.10 468 1.95 155 2.13 AR MS
COMLAB 627 0.60 8 -0.85 450 3.00 33 1.50 <0.5 bld <0.5 bld <0.5 bld <0.5 bld 521 3.00 159 2.57 AR,MICR ES
COMLAB 639 0.81 8 -0.92 294 -0.50 30 0.21 0 -1.89 0 -1.96 0 -1.39 0 -1.70 453 0.79 142 0.63 AR AAS
COMLAB 504 -1.60 6 -1.91 327 1.74 30 0.11 <1 bld <1 bld <1 bld <1 bld 469 2.01 133 -0.38 AR ES
COMLAB 641 0.85 9 -0.33 308 0.46 29 -0.20 <5 bld <5 bld <5 bld <5 bld 430 -0.98 144 0.86 AR MS
COMLAB 636 0.75 9 -0.16 301 -0.04 26 -1.48 <5 bld <5 bld <5 bld <5 bld 452 0.71 150 1.51 AR ES
COMLAB 642 0.87 10 0.03 302 0.02 29 -0.08 1 -0.58 2 -0.42 2 -0.23 1 -0.82 427 -1.20 135 -0.17 AR MS
COMLAB 654 1.08 7 -1.45 301 -0.02 30 0.21 <5 bld <5 bld <5 bld <5 bld 456 1.03 145 0.92 AR ES
COMLAB 625 0.55 8 -0.74 301 0.00 29 -0.08 1 -0.88 1 -1.15 1 -0.77 1 -1.18 439 -0.25 127 -1.07 AR MS
COMLAB 652 1.04 8 -0.92 301 -0.02 29 -0.20 <2 bld <2 bld <2 bld <2 bld 433 -0.75 133 -0.41 AR ES
COMLAB 573 -0.37 9 -0.33 320 1.28 25 -1.85 2 0.49 3 0.82 3 0.43 <2 bld 501 3.00 157 2.37 AR AAS
COMLAB 183 -3.00 6 -2.11 277 -1.67 27 -1.03 2 0.49 3 0.82 1 -0.90 2 -0.10 387 -3.00 119 -2.03 1A ICP
COMLAB 518 -1.35 11 0.86 298 -0.23 37 3.00 1 -1.03 2 -0.22 2 -0.23 3 0.80 437 -0.44 126 -1.22 AR ICP
COMLAB 508 -1.53 9 -0.33 317 1.07 30 0.21 2 0.49 <2 bld <2 bld <2 bld 432 -0.82 129 -0.88 AR MS
COMLAB 564 -0.53 12 1.46 311 0.66 31 0.62 3 2.01 2 -0.22 2 -0.23 3 0.80 439 -0.28 135 -0.18 AR MS
COMLAB 384 -3.00 13 2.05 297 -0.30 30 0.21 2 0.49 <2 bld 4 1.10 6 3.00 430 -0.98 124 -1.46 AR ES
COMLAB 636 0.76 10 0.07 315 0.92 31 0.43 <3 bld <3 bld <3 bld <3 bld 441 -0.13 135 -0.17 AR ES
COMLAB 533 -1.09 9 -0.33 290 -0.78 27 -1.03 2 0.49 3 0.82 3 0.43 3 0.80 403 -3.00 132 -0.53 AR ES
COMLAB 609 0.27 11 0.86 313 0.80 32 1.03 <1.5 bld <1.5 bld <1.5 bld <1.5 bld 456 1.03 146 1.09 AR ES
COMLAB 613 0.34 2 -3.00 311 0.66 2 -3.00 2 0.49 3 0.82 <1 bld 4 1.70 423 -1.52 25 -3.00 AR ICP
COMLAB 537 -1.01 13 2.05 322 1.42 36 2.67 1 -1.03 3 0.82 2 -0.23 2 -0.10 554 3.00 181 3.00 AR AAS
MINELAB 633 0.70 10 -0.01 288 -0.93 26 -1.52 2 0.34 2 0.29 2 -0.20 2 -0.16 440 -0.24 130 -0.71 AR AAS
MINELAB 693 1.78 6 -2.11 250 -3.00 30 0.21 <1 bld 4 1.85 7 3.00 <1 bld 431 -0.90 128 -0.99 3A AAS
MINELAB 612 0.33 13 1.76 305 0.23 35 2.07 <2 bld <2 bld <2 bld <2 bld 408 -2.67 104 -3.00 AR ICP
MINELAB 616 0.40 8 -0.92 276 -1.73 29 -0.20 1 -1.03 2 -0.22 1 -0.90 3 0.80 438 -0.36 120 -1.92 3A ES
MINELAB 675 1.46 8 -0.74 327 1.79 27 -0.86 1 -0.88 2 -0.42 1 -0.70 1 -0.91 455 0.96 136 -0.10 ICP
MINELAB 563 -0.55 8 -0.67 281 -1.43 26 -1.33 <5 bld <5 bld <5 bld <5 bld 432 -0.86 136 -0.08 AR ES
MINELAB 599 0.10 10 0.05 286 -1.03 28 -0.76 2 0.84 nr nr nr nr nr nr 455 0.98 143 0.70 AR MS
MINELAB 613 0.35 9 -0.52 287 -0.97 28 -0.66 2 0.75 2 -0.14 2 -0.13 2 -0.42 453 0.81 133 -0.41 AR ES
MINELAB 619 0.44 10 -0.01 312 0.77 31 0.63 <3 bld <3 bld <3 bld <3 bld 465 1.70 142 0.67 AR ES
MINELAB 618 0.43 10 0.27 300 -0.09 30 0.21 2 0.49 4 1.85 2 -0.23 4 1.70 432 -0.82 134 -0.30 AR ES
MINELAB 650 1.01 9 -0.33 304 0.18 31 0.62 <5 bld <5 bld <5 bld <5 bld 457 1.10 135 -0.18 AR ES
MINELAB 488 -1.89 9 -0.37 302 0.02 30 0.35 1 -0.41 2 -0.67 2 -0.42 1 -0.77 421 -1.69 130 -0.82 AR ES
MINELAB 627 0.59 12 1.46 299 -0.16 30 0.21 4 3.00 4 1.85 6 2.44 4 1.70 434 -0.67 137 0.05 AR AAS
MINELAB 656 1.11 11 0.86 314 0.87 40 3.00 <1 bld <1 bld <1 bld <1 bld 490 3.00 135 -0.18 AR ICP
MINELAB 682 1.58 bld bld 332 2.10 bld bld bld bld bld bld bld bld bld bld 451 0.64 139 0.28 AR AAS
MINELAB 588 -0.10 13 1.93 331 2.03 30 0.00 <10 bld <10 bld <10 bld <10 bld 452 0.72 151 1.67 AR AAS
MINELAB 586 -0.14 10 0.10 293 -0.57 30 0.22 1 -1.63 3 1.13 3 0.41 1 -1.05 441 -0.12 135 -0.15 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted materials. These results do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 33
Arsenic Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Arsenic Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
COMLAB
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-3 -2 -1 0 1 2 30 1 2
ZARAZMA TEHRAN
COMLAB
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Zarazma Minerals Studies Company ReportPage 34
Cobalt (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 7 4 55 49 57 37 73 31 55 45
STDEV (ppm) 2 1 3 3 3 2 3 2 3 3
95% CI (ppm) 0 0 1 1 1 0 1 0 1 1
95% CI (%) 6.40% 4.81% 1.54% 1.51% 1.19% 1.13% 1.13% 1.47% 1.39% 1.50% Cobalt Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 4 3 47 42 52 34 66 27 47 39
MEDIAN (ppm) 7 4 55 49 57 37 74 31 55 45
MAX (ppm) 11 6 61 54 64 40 80 35 60 50
IQR (ppm) 2 1 4 4 4 2 5 2 4 3
COUNT 50 49 58 60 58 57 58 58 58 55
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 7 0.28 4 -0.22 57 0.49 51 0.75 54 -1.13 34 -1.62 68 -1.67 29 -1.05 51 -1.20 42 -1.31 4A ES
COMLAB <1 -3.00 5 0.85 57 0.58 52 1.21 60 1.03 39 1.40 78 1.57 31 0.03 56 0.44 46 0.34 4A ICP
COMLAB 15 3.00 5 0.85 54 -0.34 49 0.16 61 1.41 39 1.40 74 0.31 31 0.03 54 -0.24 46 0.34 4A ICP
COMLAB <1 -3.00 4 -0.49 52 -0.95 47 -0.53 57 -0.10 36 -0.49 75 0.63 29 -1.11 50 -1.61 42 -1.23 4A ICP
COMLAB <10 bld <10 bld 54 -0.34 50 0.51 59 0.65 38 0.77 76 0.94 33 1.17 57 0.78 50 1.91 4A ES
COMLAB 5 -1.19 4 -0.49 55 -0.03 50 0.51 55 -0.86 36 -0.49 70 -0.94 30 -0.54 53 -0.59 44 -0.44 4A ES
COMLAB 7 0.09 4 -0.49 59 1.19 50 0.51 56 -0.48 38 0.77 76 0.94 31 0.03 55 0.10 46 0.34 4A ES
COMLAB 6 -0.55 5 0.85 57 0.58 49 0.16 57 -0.10 36 -0.49 73 0.00 32 0.60 54 -0.24 46 0.34 4A ES
COMLAB <1 -3.00 3 -1.84 54 -0.34 48 -0.19 57 -0.10 35 -1.12 74 0.31 32 0.60 52 -0.93 41 -1.62 4A ES
COMLAB 7 0.09 4 -0.49 59 1.19 46 -0.88 56 -0.48 37 0.14 75 0.63 30 -0.54 54 -0.24 43 -0.84 4A ES
COMLAB 5 -1.19 5 0.85 56 0.27 53 1.55 54 -1.24 37 0.14 69 -1.26 34 1.74 50 -1.61 50 1.91 4A ES
COMLAB 4 -1.83 2 -3.00 56 0.27 48 -0.19 57 -0.10 36 -0.49 73 0.00 29 -1.11 56 0.44 43 -0.84 4A ICP
COMLAB <1 -3.00 5 0.85 55 -0.03 47 -0.53 58 0.27 35 -1.12 77 1.25 30 -0.54 53 -0.59 51 2.31 4A ES
COMLAB 10 2.00 10 3.00 55 -0.03 45 -1.23 55 -0.86 35 -1.12 70 -0.94 30 -0.54 60 1.81 50 1.91 4A ES
COMLAB 7 0.09 5 0.85 57 0.58 52 1.21 58 0.27 36 -0.49 75 0.63 31 0.03 56 0.44 46 0.34 4A ES
COMLAB 11 2.64 4 -0.49 57 0.58 49 0.16 58 0.27 37 0.14 73 0.00 30 -0.54 55 0.10 45 -0.05 4A ES
COMLAB 6 -0.55 4 -0.49 57 0.58 49 0.16 55 -0.86 36 -0.49 73 0.00 29 -1.11 55 0.10 45 -0.05 4A ES
COMLAB 6 -0.55 3 -1.84 53 -0.64 47 -0.53 55 -0.86 36 -0.49 69 -1.26 30 -0.54 51 -1.27 42 -1.23 4A ES
COMLAB 7 0.09 4 -0.49 53 -0.64 50 0.51 64 2.55 38 0.77 83 3.00 34 1.74 55 0.10 48 1.13 4A ES
COMLAB 7 0.09 4 -0.63 60 1.50 51 0.72 57 0.01 36 -0.68 74 0.31 33 1.06 57 0.68 44 -0.40 4A MS
COMLAB 5 -1.06 6 2.33 51 -1.34 43 -2.00 55 -0.86 35 -0.87 70 -1.07 30 -0.54 57 0.65 48 1.21 5A ES
COMLAB 7 0.21 4 -0.36 56 0.40 51 0.79 56 -0.48 38 0.52 74 0.15 31 0.26 59 1.43 46 0.26 4A ICP
COMLAB 4 -1.83 4 -0.49 52 -0.95 48 -0.19 58 0.27 37 0.14 77 1.25 29 -1.11 53 -0.59 44 -0.44 4A MS
COMLAB 7 0.28 4 -0.36 60 1.50 54 1.90 58 0.27 38 0.77 75 0.63 32 0.60 59 1.47 47 0.73 NAA
COMLAB 8 0.72 5 0.85 56 0.27 52 1.21 55 -0.86 36 -0.49 74 0.31 30 -0.54 54 -0.24 43 -0.84 4A MS
COMLAB 6 -0.36 4 -0.63 58 1.01 48 -0.29 62 1.72 40 2.09 80 2.13 34 1.51 58 0.95 46 0.26 4A MS
COMLAB 7 0.15 7 3.00 54 -0.21 46 -0.81 58 0.20 37 0.14 72 -0.25 32 0.83 60 1.81 54 3.00 4A ES
COMLAB 8 0.72 4 -0.49 56 0.27 49 0.16 57 -0.10 37 0.14 74 0.31 31 0.03 55 0.10 44 -0.44 4A ICP
COMLAB 28 3.00 6 2.20 61 1.80 53 1.55 64 2.55 47 3.00 79 1.88 42 3.00 65 3.00 55 3.00 4A ES
COMLAB <4 bld 5 0.18 56 0.40 51 0.75 55 -0.98 36 -0.24 70 -0.88 30 -0.77 54 -0.31 43 -0.72 3A,MICR ES
COMLAB 7 0.09 4 -0.49 59 1.19 50 0.51 60 1.03 38 0.77 75 0.63 31 0.03 55 0.10 48 1.13 4A MS
COMLAB 7 0.02 4 -0.22 58 1.01 51 0.89 59 0.73 38 0.64 75 0.50 32 0.37 56 0.41 45 0.03 4A ES
COMLAB 7 -0.04 4 -0.76 58 0.76 49 0.27 56 -0.45 36 -0.80 73 -0.10 30 -0.37 56 0.30 45 -0.21 4A MS
COMLAB 6 -0.55 5 0.85 56 0.27 49 0.16 59 0.65 37 0.14 75 0.63 30 -0.54 55 0.10 45 -0.05 4A ES
COMLAB 7 0.15 4 -0.09 59 1.31 52 1.07 59 0.62 40 1.90 77 1.32 32 0.49 59 1.54 47 0.81 4A MS
COMLAB 7 0.09 4 -0.49 58 0.88 50 0.51 59 0.65 37 0.14 72 -0.32 31 0.03 57 0.78 45 -0.05 4A MS
COMLAB 7 0.09 4 -0.49 58 0.88 52 1.21 61 1.41 40 2.03 78 1.57 32 0.60 57 0.78 50 1.91 4A ICP
COMLAB 5 -1.16 4 -0.16 55 -0.09 47 -0.50 58 0.20 36 -0.80 75 0.66 31 -0.25 57 0.82 46 0.38 4A ES
COMLAB 7 0.02 4 -0.09 56 0.21 50 0.34 58 0.31 39 1.33 75 0.50 32 0.32 58 1.26 46 0.46 4A MS
COMLAB 8 0.72 5 0.85 47 -2.47 42 -2.28 52 -2.00 35 -1.12 70 -0.94 30 -0.54 50 -1.61 41 -1.62 4A ES
COMLAB 8 0.98 4 -0.49 61 1.68 53 1.62 53 -1.78 34 -2.06 66 -2.20 28 -1.56 51 -1.13 44 -0.64 4A ICP
COMLAB 8 0.72 4 -0.49 55 -0.03 50 0.51 53 -1.62 35 -1.12 69 -1.26 29 -1.11 56 0.44 47 0.73 4A ES
COMLAB 6 -0.55 4 -0.49 52 -0.95 47 -0.53 56 -0.48 35 -1.12 74 0.31 30 -0.54 54 -0.24 44 -0.44 4A ES
COMLAB 37 3.00 8 3.00 107 3.00 90 3.00 105 3.00 80 3.00 142 3.00 62 3.00 103 3.00 91 3.00 4A
COMLAB 4 -1.89 5 0.18 54 -0.46 48 -0.22 55 -1.05 35 -1.37 69 -1.20 28 -1.62 54 -0.41 42 -1.31 4A ICP
COMLAB 6 -0.55 7 3.00 54 -0.40 51 0.79 59 0.61 38 0.74 74 0.22 34 1.68 53 -0.60 43 -0.89 4A AAS
COMLAB 9 1.11 5 1.39 53 -0.64 44 -1.58 61 1.41 42 3.00 74 0.31 35 2.31 47 -2.64 48 1.13 4A,FUS AAS,MS
COMLAB <20 bld <20 bld 53 -0.64 44 -1.58 54 -1.24 36 -0.49 69 -1.26 27 -2.25 50 -1.61 42 -1.23 4A AAS
COMLAB 5 -1.19 <5 bld 48 -2.17 45 -1.23 55 -0.86 36 -0.49 70 -0.94 30 -0.54 53 -0.59 44 -0.44 4A AAS
COMLAB 4 -1.83 5 0.85 52 -0.95 49 0.16 58 0.27 36 -0.49 75 0.63 31 0.03 56 0.44 45 -0.05 4A ES
COMLAB 8 0.72 6 1.70 49 -2.01 44 -1.75 58 0.42 35 -1.42 66 -2.35 32 0.66 56 0.60 55 3.00 4A MS
COMLAB 12 3.00 2 -3.00 53 -0.64 48 -0.19 68 3.00 38 0.77 76 0.94 33 1.17 56 0.44 49 1.52 4A ES
COMLAB 7 0.18 4 -0.63 45 -3.00 45 -1.23 55 -0.75 42 3.00 69 -1.22 29 -0.85 53 -0.44 45 -0.01 4A ES
COMLAB 7 -0.17 4 -0.63 52 -0.85 46 -0.78 57 -0.26 37 -0.05 71 -0.79 30 -0.42 55 -0.04 45 -0.09 4A ES
COMLAB 10 2.00 9 3.00 53 -0.64 50 0.51 60 1.03 39 1.40 76 0.94 34 1.74 55 0.10 45 -0.05 4A ES
COMLAB 16 3.00 10 3.00 77 3.00 55 2.25 64 2.55 40 2.03 83 3.00 44 3.00 55 0.10 37 -3.00 4A ICP
COMLAB 8 0.72 4 -0.49 57 0.58 48 -0.19 59 0.65 37 0.14 73 0.00 32 0.60 59 1.47 50 1.91 4A ES
MINELAB 10 2.00 10 3.00 59 1.19 52 1.21 61 1.41 40 2.03 77 1.25 34 1.74 66 3.00 58 3.00 FUS ES
MINELAB 8 0.83 6 2.78 55 -0.18 43 -2.09 58 0.46 39 1.29 73 0.02 33 1.38 60 1.76 53 3.00 4A ES
MINELAB 7 0.28 4 -0.36 53 -0.76 47 -0.50 55 -1.02 35 -1.37 69 -1.23 29 -0.88 53 -0.72 43 -0.76 4A ES
MINELAB 5 -1.19 5 0.45 44 -3.00 45 -1.34 46 -3.00 38 0.77 60 -3.00 23 -3.00 52 -0.93 45 -0.05 3A,MICR ES
MINELAB 7 0.09 3 -2.24 50 -1.71 45 -1.30 54 -1.24 35 -0.87 70 -0.94 30 -0.54 53 -0.62 45 -0.17 4A MS
MINELAB <10 bld <10 bld 48 -2.05 48 -0.11 58 0.15 36 -0.26 72 -0.30 29 -1.38 49 -2.10 39 -2.53 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 35
Cobalt Assay (Total Digest) - Mean of Absolute Standardized Values - April 2020 Cobalt Assay (Total Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
ZARAZMA TEHRAN
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
ZARAZMA TEHRAN
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Zarazma Minerals Studies Company ReportPage 36
Cobalt (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
MEAN (ppm) 7 4 51 46 57 36 73 30 48 35
STDEV (ppm) 2 0 4 3 4 1 3 2 2 3
95% CI (ppm) 1 0 1 1 1 0 1 0 1 1
95% CI (%) 7.57% 3.58% 2.16% 2.06% 1.69% 1.10% 1.19% 1.44% 1.42% 2.50% Cobalt Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020MIN (ppm) 3 3 40 38 51 33 66 27 42 30
MEDIAN (ppm) 7 4 51 45 57 36 73 30 47 35
MAX (ppm) 11 5 60 54 66 38 80 34 54 43
IQR (ppm) 1 0 5 4 4 2 3 2 2 4
COUNT 40 43 49 49 52 41 48 48 46 48
Standard Reference GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB <1 -3.00 4 0.21 46 -1.18 43 -0.79 63 1.69 40 3.00 80 2.48 34 2.34 49 0.53 36 0.30 AR ICP
COMLAB 10 2.02 4 0.21 50 -0.14 44 -0.49 60 0.83 38 1.59 76 1.16 33 1.69 48 0.10 38 0.95 AR ICP
COMLAB <1 -3.00 4 0.21 43 -1.95 39 -1.99 61 1.12 38 1.59 77 1.49 32 1.04 47 -0.33 34 -0.35 AR ICP
COMLAB 9 1.40 6 3.00 43 -1.95 42 -1.09 56 -0.31 37 0.80 70 -0.83 27 -2.22 40 -3.00 33 -0.68 AR ES
COMLAB <1 -3.00 4 0.21 53 0.63 48 0.72 55 -0.60 34 -1.55 73 0.16 29 -0.92 46 -0.76 35 -0.03 AR ES
COMLAB 6 -0.45 4 0.21 54 0.89 49 1.02 55 -0.60 36 0.02 74 0.49 31 0.39 48 0.10 33 -0.68 AR ES
COMLAB 5 -1.06 4 0.21 53 0.63 47 0.42 55 -0.60 37 0.80 71 -0.50 30 -0.27 46 -0.76 34 -0.35 AR ES
COMLAB 7 0.17 4 0.21 54 0.89 49 1.02 57 -0.02 35 -0.77 72 -0.17 31 0.39 47 -0.33 34 -0.35 AR ICP
COMLAB <1 -3.00 4 0.21 50 -0.14 46 0.12 56 -0.31 35 -0.77 73 0.16 29 -0.92 46 -0.76 34 -0.35 AR ES
COMLAB 11 2.63 4 0.21 55 1.15 49 1.02 58 0.26 38 1.59 72 -0.17 32 1.04 49 0.53 35 -0.03 AR ES
COMLAB 8 0.79 4 0.21 53 0.63 47 0.42 58 0.26 36 0.02 74 0.49 31 0.39 49 0.53 34 -0.35 AR ES
COMLAB 6 -0.45 4 0.21 51 0.12 45 -0.18 55 -0.60 36 0.02 71 -0.50 29 -0.92 47 -0.33 33 -0.68 AR ES
COMLAB 5 -1.06 4 0.21 53 0.63 47 0.42 57 -0.02 35 -0.77 72 -0.17 30 -0.27 47 -0.33 33 -0.68 AR ES
COMLAB 7 0.05 4 -0.87 51 0.22 45 -0.09 59 0.46 35 -0.69 75 0.76 30 -0.40 47 -0.50 32 -1.17 AR MS
COMLAB 5 -0.82 4 0.43 44 -1.77 40 -1.75 51 -1.68 29 -3.00 62 -3.00 23 -3.00 47 -0.33 36 0.17 AR ES
COMLAB 7 -0.01 4 -0.22 51 0.19 46 0.06 59 0.49 35 -0.53 72 -0.30 31 0.65 48 0.19 37 0.62 AR ICP
COMLAB 10 2.02 4 0.21 55 1.15 49 1.02 57 -0.02 37 0.80 73 0.16 31 0.39 50 0.96 36 0.30 AR ES
COMLAB 6 -0.32 4 -0.01 40 -2.63 38 -2.39 56 -0.28 36 0.02 72 -0.30 29 -0.66 45 -1.06 32 -1.10 AR MS
COMLAB 6 -0.45 5 2.37 53 0.63 48 0.72 52 -1.45 37 0.80 71 -0.50 29 -0.92 54 2.68 46 3.00 AR MS
COMLAB 5 -1.22 3 -1.95 48 -0.67 42 -0.95 52 -1.36 59 3.00 74 0.40 29 -1.18 48 0.15 24 -3.00 AR,MICR ES
COMLAB <1 -3.00 2 -3.00 52 0.33 50 1.34 53 -1.21 32 -3.00 73 0.19 29 -1.05 48 0.19 35 -0.01 AR ES
COMLAB 7 0.17 4 0.21 53 0.63 47 0.42 58 0.26 37 0.80 74 0.49 32 1.04 51 1.39 39 1.27 AR MS
COMLAB 5 -1.19 4 -0.35 52 0.35 46 0.24 58 0.17 34 -1.24 74 0.46 30 -0.14 47 -0.29 38 0.88 AR ES
COMLAB 7 -0.01 4 0.21 53 0.58 47 0.33 55 -0.65 36 -0.37 72 -0.33 31 0.19 47 -0.25 34 -0.35 AR MS
COMLAB 15 3.00 6 3.00 49 -0.40 44 -0.49 53 -1.17 35 -0.77 66 -2.15 29 -0.92 55 3.00 48 3.00 3A ES
COMLAB 7 0.42 4 0.21 49 -0.53 43 -0.79 55 -0.65 35 -1.16 69 -1.33 29 -1.05 46 -0.76 33 -0.81 AR ES
COMLAB 6 -0.45 3 -1.95 49 -0.40 45 -0.18 55 -0.60 34 -1.55 71 -0.50 30 -0.27 44 -1.62 32 -1.01 AR ES
COMLAB 5 -1.06 4 0.21 49 -0.40 44 -0.49 55 -0.60 35 -0.77 73 0.16 29 -0.92 47 -0.33 32 -1.01 AR ES
COMLAB 5 -1.06 4 0.21 36 -3.00 34 -3.00 56 -0.31 35 -0.77 73 0.16 29 -0.92 45 -1.19 37 0.62 AR AAS
COMLAB 6 -0.45 7 3.00 52 0.38 44 -0.49 58 0.26 38 1.59 74 0.49 31 0.39 58 3.00 46 3.00 3A ICP
COMLAB 8 0.97 5 1.51 51 0.09 46 0.21 64 2.06 42 3.00 68 -1.62 37 3.00 47 -0.33 40 1.50 AR ICP
COMLAB 3 -2.29 4 0.21 50 -0.14 44 -0.49 61 1.12 37 0.80 75 0.83 30 -0.27 47 -0.33 34 -0.35 AR ES
COMLAB 7 0.17 4 0.21 53 0.63 48 0.72 61 1.12 37 0.80 75 0.83 30 -0.27 49 0.53 34 -0.35 AR MS
COMLAB 8 0.79 3 -1.95 47 -0.92 43 -0.79 54 -0.88 35 -0.77 69 -1.16 28 -1.57 43 -2.06 30 -1.66 AR ES
COMLAB 10 1.75 3 -2.45 49 -0.38 45 -0.15 56 -0.35 37 0.51 70 -0.84 31 0.27 49 0.34 36 0.39 AR ES
COMLAB 6 -0.45 4 0.21 47 -0.92 41 -1.39 56 -0.31 36 0.02 68 -1.49 31 0.39 47 -0.33 36 0.30 AR ES
COMLAB 7 0.17 4 0.21 52 0.38 49 1.02 57 -0.02 37 0.80 73 0.16 31 0.39 49 0.53 36 0.30 AR ES
COMLAB 16 3.00 4 0.21 53 0.63 46 0.12 59 0.55 40 3.00 74 0.49 33 1.69 51 1.39 41 1.92 3A ICP
COMLAB 7 0.17 6 3.00 53 0.63 54 2.53 80 3.00 52 3.00 104 3.00 43 3.00 63 3.00 50 3.00 AR AAS
MINELAB 17 3.00 4 0.32 37 -3.00 34 -3.00 53 -1.08 35 -1.12 79 2.16 29 -1.03 42 -2.34 31 -1.31 AR ES
MINELAB 7 0.43 6 3.00 60 2.56 52 1.95 64 2.05 42 3.00 82 3.00 37 3.00 57 3.00 42 2.33 AR ICP
MINELAB 34 3.00 <10 bld 73 3.00 59 3.00 66 2.54 47 3.00 84 3.00 39 3.00 59 3.00 43 2.58 3A AAS
MINELAB <5 bld 4 0.21 49 -0.40 43 -0.79 53 -1.17 35 -0.77 68 -1.49 30 -0.27 46 -0.76 32 -1.01 3A ES
MINELAB 6 -0.63 4 -0.87 52 0.25 50 1.17 56 -0.22 44 3.00 71 -0.60 30 -0.01 48 0.01 30 -1.79 ICP
MINELAB 7 0.12 4 0.28 45 -1.52 40 -1.58 55 -0.48 37 0.48 71 -0.42 31 0.50 47 -0.45 37 0.48 AR ES
MINELAB 6 -0.32 5 1.70 48 -0.58 44 -0.58 63 1.66 41 3.00 80 2.42 34 2.11 53 2.21 40 1.66 AR MS
MINELAB 5 -0.88 4 0.71 48 -0.68 44 -0.56 59 0.51 36 0.01 72 -0.24 30 0.04 49 0.36 36 0.14 AR ES
MINELAB <8 bld <8 bld 51 0.08 45 -0.21 57 -0.04 37 0.78 74 0.33 31 0.52 47 -0.20 34 -0.47 3A ES
MINELAB 7 0.05 4 -0.01 50 -0.22 45 -0.31 58 0.15 37 0.41 74 0.40 31 0.26 48 -0.12 38 0.78 AR ES
MINELAB <5 bld <5 bld 49 -0.40 47 0.42 59 0.55 38 1.59 76 1.16 31 0.39 49 0.53 36 0.30 AR ES
MINELAB 26 3.00 2 -3.00 57 1.67 47 0.42 58 0.26 36 0.02 70 -0.83 30 -0.27 52 1.82 37 0.62 AR ICP
MINELAB 8 0.48 5 1.73 58 1.90 51 1.62 63 1.80 41 3.00 82 3.00 34 2.15 52 1.82 37 0.56 3A AAS
MINELAB 7 -0.14 3 -2.60 48 -0.71 45 -0.34 53 -1.05 35 -0.53 72 -0.33 30 -0.20 46 -0.76 33 -0.81 AR MSMINELAB 13 3.00 4 -0.68 36 -3.00 34 -3.00 51 -1.82 33 -2.57 68 -1.58 28 -1.73 40 -3.00 30 -1.55 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 37
Cobalt Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2020 Cobalt Assay (Partial Digest) - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Zarazma Minerals Studies Company ReportPage 38
Ore Grade Copper Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (ppm) 16875 25716 504 168697 128 49
STDEV (ppm) 550 769 24 5308 18 8
95% CI (ppm) 102 145 5 1010 4 2
95% CI (%) 0.61% 0.56% 0.96% 0.60% 2.93% 3.51% Ore Grade Copper Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 15500 23546 448 154951 90 30
MEDIAN (ppm) 16852 25700 500 168000 123 49
MAX (ppm) 18346 27760 570 183000 177 70
IQR (ppm) 589 900 25 5892 24 10
COUNT 112 109 97 107 89 86
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 17765 1.62 27493 2.31 475 -1.21 173175 0.84 116 -0.67 49 0.04 AR ES
COMLAB 16900 0.05 25800 0.11 500 -0.17 164000 -0.88 110 -1.00 <50 bld FUS ICP
COMLAB 16940 0.12 25450 -0.35 500 -0.17 172980 0.81 120 -0.45 50 0.16 4A ES
COMLAB 16400 -0.86 25500 -0.28 500 -0.17 171000 0.43 120 -0.45 50 0.16 4A ES
COMLAB 16670 -0.37 25467 -0.32 495 -0.38 166296 -0.45 115 -0.72 53 0.54 FUS ES
COMLAB 16339 -0.97 23546 -2.82 534 1.24 166881 -0.34 160 1.78 100 3.00 4A AAS
COMLAB 20937 3.00 30322 3.00 420 -3.00 158222 -1.97 223 3.00 70 2.65 4A ES
COMLAB 16674 -0.36 26079 0.47 495 -0.38 171921 0.61 112 -0.89 41 -0.95 3A ES
COMLAB 16950 0.14 25600 -0.15 490 -0.58 168000 -0.13 150 1.23 50 0.16 4A ES
COMLAB 16800 -0.14 25300 -0.54 600 3.00 171000 0.43 200 3.00 <100 bld FUS XRF
COMLAB 16600 -0.50 25900 0.24 510 0.24 165500 -0.60 130 0.11 60 1.41 4A ES
COMLAB 16580 -0.54 25430 -0.37 600 3.00 158170 -1.98 230 3.00 80 3.00 4A ES
COMLAB 17150 0.50 25600 -0.15 500 -0.17 175500 1.28 130 0.11 40 -1.08 FUS ES
COMLAB 17450 1.05 26200 0.63 500 -0.17 167500 -0.23 130 0.11 60 1.41 4A ES
COMLAB 16800 -0.14 25700 -0.02 500 -0.17 163500 -0.98 130 0.11 50 0.16 4A ICP
COMLAB 16950 0.14 25600 -0.15 500 -0.17 163500 -0.98 130 0.11 60 1.41 4A ES
COMLAB 17300 0.77 26200 0.63 nr nr 167000 -0.32 nr nr nr nr 4A ES
COMLAB 16080 -1.44 25790 0.10 580 3.00 166480 -0.42 150 1.23 50 0.16 AR ES
COMLAB 16700 -0.32 25400 -0.41 490 -0.58 165500 -0.60 160 1.78 50 0.16 AR ES
COMLAB 16900 0.05 25500 -0.28 520 0.66 166000 -0.51 150 1.23 50 0.16 AR ES
COMLAB 16550 -0.59 26300 0.76 480 -1.00 168000 -0.13 120 -0.45 50 0.16 4A ES
COMLAB 16490 -0.70 25130 -0.76 nr nr 167200 -0.28 nr nr nr nr 4A AAS
COMLAB 17440 1.03 26260 0.71 510 0.24 167700 -0.19 120 -0.45 50 0.16 AR AAS
COMLAB 17020 0.26 26350 0.82 500 -0.17 167650 -0.20 120 -0.45 40 -1.08 4A AAS
COMLAB 15500 -2.50 25300 -0.54 510 0.24 167500 -0.23 170 2.34 60 1.41 4A ES
COMLAB 16650 -0.41 25300 -0.54 490 -0.58 169500 0.15 140 0.67 50 0.16 4A ES
COMLAB 16500 -0.68 25000 -0.93 nr nr 167200 -0.28 nr nr nr nr 4A AAS
COMLAB 16289 -1.06 26227 0.66 509 0.20 183000 2.69 134 0.33 50 0.16 5A ES
COMLAB 17410 0.97 26210 0.64 510 0.24 164300 -0.83 130 0.11 50 0.16 4A AAS
COMLAB 16600 -0.50 25200 -0.67 564 2.48 167000 -0.32 72 -3.00 54 0.66 3A ES
COMLAB 16907 0.06 25360 -0.46 493 -0.46 >100000 ald 113 -0.84 46 -0.33 AR AAS
COMLAB 16900 0.05 25800 0.11 476 -1.16 168000 -0.13 114 -0.78 54 0.66 4A ES
COMLAB 18346 2.67 27488 2.30 554 2.06 >100000 ald 125 -0.17 37 -1.45 AR ES
COMLAB 16420 -0.83 25560 -0.20 490 -0.58 169930 0.23 150 1.23 50 0.16 4A AAS
COMLAB 17300 0.77 25800 0.11 506 0.08 170000 0.25 120 -0.45 64 1.90 AR ICP
COMLAB 16300 -1.04 24500 -1.58 465 -1.62 168400 -0.06 124 -0.22 36 -1.58 4A,TITR ES
COMLAB 17000 0.23 25900 0.24 500 -0.17 170500 0.34 100 -1.56 100 3.00 AR ES
COMLAB 17000 0.23 25600 -0.15 499 -0.21 175000 1.19 116 -0.67 53 0.54 4A ICP
COMLAB 18288 2.57 3044 -3.00 648 3.00 185664 3.00 119 -0.47 51 0.32 AR,MICR ES
COMLAB nr nr nr nr nr nr 167339 -0.26 nr nr nr nr 4A,TITR
COMLAB 16603 -0.49 24901 -1.06 490 -0.58 173924 0.98 11 -3.00 66 2.15 4A ES
COMLAB 16894 0.04 26153 0.57 532 1.14 169904 0.23 120 -0.46 41 -0.92 3A,MICR ES
COMLAB 16895 0.04 25695 -0.03 511 0.28 167997 -0.13 110 -1.00 53 0.54 4A,TITR AAS
COMLAB 18245 2.49 27555 2.39 448 -2.34 173260 0.86 71 -3.00 <1 -3.00 AR ES
COMLAB 16910 0.06 25296 -0.55 491 -0.54 167507 -0.22 148 1.12 67 2.28 4A ES
COMLAB 16400 -0.86 24400 -1.71 475 -1.21 171000 0.43 105 -1.28 45 -0.46 MS
COMLAB 17173 0.54 24955 -0.99 496 -0.34 172350 0.69 140 0.67 57 1.03 4A ES
COMLAB 17300 0.77 25700 -0.02 526 0.90 172200 0.66 135 0.39 56 0.91 4A ES
COMLAB 17300 0.77 26400 0.89 600 3.00 162000 -1.26 200 3.00 100 3.00 4A AAS
COMLAB 15840 -1.88 18800 -3.00 646 3.00 21040 -3.00 275 3.00 74 3.00 3A AAS
COMLAB 17883 1.83 26841 1.46 504 -0.01 170620 0.36 135 0.39 54 0.66 4A ICP
COMLAB 16802 -0.13 25535 -0.23 536 1.33 165940 -0.52 136 0.43 44 -0.59 4A ES
COMLAB 16780 -0.17 25433 -0.37 494 -0.42 166982 -0.32 127 -0.06 39 -1.20 4A ES
COMLAB 17223 0.63 25809 0.12 500 -0.17 174545 1.10 113 -0.84 49 0.04 3A ICP
COMLAB 16940 0.12 25550 -0.22 503 -0.05 172950 0.80 210 3.00 44 -0.58 4A ES
COMLAB 16250 -1.13 24850 -1.13 497 -0.30 156000 -2.39 148 1.12 56 0.95 AR ES
COMLAB 17900 1.86 28100 3.00 482 -0.92 170000 0.25 120 -0.45 42 -0.83 4A ICP
COMLAB 15600 -2.32 24000 -2.23 500 -0.17 164000 -0.88 143 0.84 50 0.16 4A AAS
COMLAB 16857 -0.03 24749 -1.26 512 0.33 167303 -0.26 168 2.23 46 -0.33 4A ES
COMLAB 17010 0.25 25847 0.17 505 0.04 167845 -0.16 118 -0.56 45 -0.46 FUS,4A ES
COMLAB 17440 1.03 27760 2.66 506 0.08 165960 -0.52 143 0.84 50 0.14 AR AAS
COMLAB 17000 0.23 25700 -0.02 520 0.66 165700 -0.56 120 -0.45 40 -1.08 ES
COMLAB 16476 -0.72 26532 1.06 490 -0.58 168050 -0.12 174 2.56 <100 bld 4A AAS
COMLAB 17317 0.80 27026 1.70 423 -3.00 182374 2.58 177 2.73 44 -0.58 3A ICP
COMLAB 17986 2.02 26960 1.62 531 1.11 170774 0.39 123 -0.28 47 -0.21 4A ICP
COMLAB 16337 -0.98 24622 -1.42 462 -1.74 164446 -0.80 108 -1.11 42 -0.83 AAS
COMLAB 15859 -1.85 24617 -1.43 570 2.74 154951 -2.59 207 3.00 82 3.00 4A AAS
COMLAB 16500 -0.68 24700 -1.32 450 -2.24 165700 -0.56 90 -2.12 30 -2.32 4A,TITR AAS
COMLAB 16593 -0.51 24993 -0.94 497 -0.30 158188 -1.98 114 -0.78 <100 bld 4A AAS
COMLAB 16846 -0.05 25203 -0.67 484 -0.83 167547 -0.22 117 -0.61 54 0.66 4A AAS
COMLAB 16779 -0.17 25875 0.21 507 0.12 169366 0.13 163 1.95 65 2.03 3A AAS
COMLAB 16600 -0.50 26500 1.02 535 1.28 nr nr 115 -0.72 45 -0.46 4A AAS
COMLAB 16900 0.05 25700 -0.02 526 0.90 176700 1.51 111 -0.95 42 -0.83 AR MS
COMLAB 15667 -2.19 24531 -1.54 504 0.00 171763 0.58 126 -0.14 53 0.59 FUS ICP
COMLAB 16900 0.05 25200 -0.67 494 -0.42 166600 -0.40 234 3.00 34 -1.82 4A ES
COMLAB 16009 -1.57 25580 -0.18 545 1.70 167483 -0.23 133 0.29 57 1.08 4A ICP,AAS
COMLAB 16747 -0.23 26362 0.84 519 0.62 170244 0.29 232 3.00 <100 bld FUS ICP
COMLAB 18139 2.30 27044 1.73 524 0.82 176102 1.40 126 -0.11 49 0.04 4A ES
COMLAB >10000 ald >10000 ald 518 0.57 >10000 ald 211 3.00 66 2.15 4A ES
COMLAB 17200 0.59 26411 0.90 527 0.95 179467 2.03 122 -0.33 43 -0.71 4A ES
COMLAB 16378 -0.90 26057 0.44 507 0.12 16580 -3.00 152 1.34 46 -0.33 3A ICP
COMLAB 16784 -0.16 25449 -0.35 544 1.65 166225 -0.47 195 3.00 nr nr 4A AAS
MINELAB 16740 -0.24 26189 0.61 531 1.13 168170 -0.10 132 0.23 42 -0.89 AR AAS
MINELAB 16920 0.08 26030 0.41 510 0.24 173750 0.95 150 1.23 50 0.16 4A AAS
MINELAB 16900 0.05 26300 0.76 500 -0.17 161500 -1.36 130 0.11 70 2.65 3A AAS
MINELAB 16100 -1.41 24850 -1.13 495 -0.38 165470 -0.61 bld bld bld bld AR AAS
MINELAB 16471 -0.73 25987 0.35 510 0.24 169070 0.07 <200 bld <100 bld 3A AAS
MINELAB 16798 -0.14 26001 0.37 621 3.00 173577 0.92 288 3.00 157 3.00 AR ES
MINELAB 16945 0.13 25515 -0.26 450 -2.24 164688 -0.76 100 -1.56 40 -1.08 AR AAS
MINELAB 16587 -0.52 25068 -0.84 496 -0.34 nr nr 121 -0.39 52 0.41 FUS ES
MINELAB 16791 -0.15 25379 -0.44 474 -1.25 172916 0.79 149 1.17 <50 bld 3A AAS
MINELAB 17100 0.41 25700 -0.02 600 3.00 165700 -0.56 600 3.00 800 3.00 4A AAS
MINELAB 16800 -0.14 24100 -2.10 600 3.00 160000 -1.64 <500 bld <500 bld 3A AAS
MINELAB 17510 1.15 26735 1.32 476 -1.16 167835 -0.16 124 -0.22 62 1.66 3A ES
MINELAB 16495 -0.69 25996 0.36 487 -0.71 180067 2.14 111 -0.93 41 -0.95 AR ES
MINELAB 16300 -1.04 25900 0.24 700 3.00 160500 -1.54 200 3.00 100 3.00 FUS XRF
MINELAB 14890 -3.00 24600 -1.45 486 -0.75 163900 -0.90 115 -0.72 40 -1.08 3A AAS
MINELAB 17120 0.45 26970 1.63 507 0.12 176350 1.44 154 1.45 44 -0.58 AR,3A AAS
MINELAB 14727 -3.00 22224 -3.00 <500 bld 151073 -3.00 <500 bld <500 bld AR AAS
MINELAB 17089 0.39 26014 0.39 517 0.52 174052 1.01 123 -0.26 43 -0.69 AR ES
MINELAB 17282 0.74 nr nr 504 -0.01 177891 1.73 117 -0.63 45 -0.43 AR MS
MINELAB 16680 -0.35 25594 -0.16 499 -0.19 179989 2.13 111 -0.94 42 -0.78 AR ES
MINELAB 18714 3.00 26966 1.62 557 2.18 174999 1.19 123 -0.30 51 0.31 4A ES
MINELAB 16764 -0.20 25124 -0.77 513 0.37 160014 -1.64 127 -0.05 45 -0.50 AR ES
MINELAB 16880 0.01 26140 0.55 540 1.48 171420 0.51 140 0.67 nr nr 3A ES
MINELAB 17433 1.01 25600 -0.15 500 -0.17 164000 -0.88 140 0.67 55 0.79 AR AAS
MINELAB 16418 -0.83 25541 -0.23 482 -0.92 157595 -2.09 235 3.00 51 0.29 3A ES
MINELAB 16910 0.06 25850 0.17 515 0.43 171225 0.48 115 -0.73 34 -1.85 AR ES
MINELAB 16712 -0.29 24145 -2.04 701 3.00 147886 -3.00 366 3.00 193 3.00 3A,MICR ES
MINELAB 16778 -0.18 25406 -0.40 449 -2.28 166425 -0.43 95 -1.84 44 -0.58 AR AAS
MINELAB 17810 1.70 23322 -3.00 360 -3.00 205123 3.00 201 3.00 <1 -3.00 AR ICP
MINELAB 16600 -0.50 25400 -0.41 600 3.00 167400 -0.24 300 3.00 bld bld FUS XRF
MINELAB 16340 -0.97 25122 -0.77 487 -0.71 165171 -0.66 122 -0.33 bld bld AR AAS
MINELAB 18000 2.04 26200 0.63 510 0.24 171000 0.43 118 -0.56 42 -0.83 AR AAS
MINELAB 17215 0.62 26054 0.44 539 1.46 172488 0.71 117 -0.64 46 -0.36 3A AAS
MINELAB 17455 1.05 26749 1.34 540 1.49 172479 0.71 119 -0.49 46 -0.38 3A AAS
MINELAB 17586 1.29 26231 0.67 503 -0.04 168489 -0.04 122 -0.36 48 -0.15 3A AAS
MINELAB 17050 0.32 25300 -0.54 490 -0.58 174500 1.09 130 0.11 40 -1.08 AR ICP
MINELAB 16158 -1.30 25290 -0.55 477 -1.12 166523 -0.41 103 -1.42 50 0.15 4A,TITR AAS
MINELAB 17158 0.51 26281 0.74 543 1.60 171626 0.55 136 0.46 <200 bld FUS ICP
MINELAB 16604 -0.49 25848 0.17 498 -0.27 168913 0.04 117 -0.61 39 -1.17 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Highlighted materials are low grade and do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 39
Ore Grade Copper Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Copper Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 40
Ore Grade Lead Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (ppm) 45 50 49252 522 89361 22
STDEV (ppm) 10 9 1457 50 3222 15
95% CI (ppm) 3 2 310 11 711 4
95% CI (%) 5.74% 4.28% 0.63% 2.03% 0.80% 18.03% Ore Grade Lead Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 18 30 46130 386 82700 3
MEDIAN (ppm) 44 49 49200 518 89127 19
MAX (ppm) 72 71 52604 642 97526 59
IQR (ppm) 10 9 1814 43 2950 26
COUNT 63 63 86 85 80 56
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 40 -0.49 51 0.15 49940 0.47 478 -0.89 90300 0.29 9 -0.87 AR ES
COMLAB <100 bld <100 bld 48400 -0.58 600 1.57 88800 -0.17 <100 bld FUS ICP
COMLAB 40 -0.49 40 -1.13 49390 0.09 500 -0.45 94290 1.53 <30 bld 4A ES
COMLAB 80 3.00 140 3.00 49700 0.31 520 -0.04 92900 1.10 <30 bld 4A ES
COMLAB 40 -0.49 46 -0.43 47823 -0.98 508 -0.29 84352 -1.55 <20 bld FUS ES
COMLAB 138 3.00 108 3.00 48248 -0.69 711 3.00 84385 -1.54 203 3.00 4A AAS
COMLAB 49 0.38 70 2.37 49644 0.27 509 -0.27 100634 3.00 44 1.44 4A ES
COMLAB 41 -0.39 43 -0.78 54104 3.00 504 -0.37 99093 3.00 6 -1.07 3A ES
COMLAB 50 0.47 50 0.03 49100 -0.10 540 0.36 90300 0.29 20 -0.14 4A ES
COMLAB 200 3.00 200 3.00 48900 -0.24 800 3.00 90000 0.20 <100 bld FUS XRF
COMLAB 50 0.47 50 0.03 48500 -0.52 520 -0.04 90100 0.23 30 0.52 4A ES
COMLAB 40 -0.49 70 2.37 48200 -0.72 510 -0.25 87000 -0.73 50 1.84 4A ES
COMLAB <50 bld 50 0.03 49200 -0.04 500 -0.45 89400 0.01 <50 bld FUS ES
COMLAB 40 -0.49 50 0.03 49200 -0.04 550 0.56 88400 -0.30 40 1.18 4A ES
COMLAB 50 0.47 60 1.20 48600 -0.45 530 0.16 88400 -0.30 bld bld 4A ICP
COMLAB 50 0.47 50 0.03 48200 -0.72 510 -0.25 87700 -0.52 40 1.18 4A ES
COMLAB nr nr nr nr 49400 0.10 nr nr 89800 0.14 nr nr 4A ES
COMLAB 50 0.47 50 0.03 48000 -0.86 530 0.16 87600 -0.55 40 1.18 4A ES
COMLAB <100 bld <100 bld 49400 0.10 500 -0.45 92800 1.07 <100 bld AR ES
COMLAB 30 -1.45 40 -1.13 48000 -0.86 490 -0.65 88000 -0.42 20 -0.14 AR ES
COMLAB 40 -0.49 50 0.03 48500 -0.52 510 -0.25 87500 -0.58 30 0.52 AR ES
COMLAB 50 0.47 40 -1.13 49000 -0.17 520 -0.04 87300 -0.64 <10 bld 4A ES
COMLAB 60 1.44 60 1.20 50100 0.58 510 -0.25 87500 -0.58 10 -0.80 AR AAS
COMLAB 60 1.44 60 1.20 51300 1.41 510 -0.25 91600 0.69 40 1.18 4A AAS
COMLAB 50 0.47 50 0.03 48300 -0.65 540 0.36 89100 -0.08 50 1.84 4A ES
COMLAB 40 -0.49 30 -2.30 49100 -0.10 530 0.16 89400 0.01 20 -0.14 4A ES
COMLAB nr nr nr nr 48900 -0.24 500 -0.45 87400 -0.61 nr nr 4A AAS
COMLAB 36 -0.87 41 -1.02 54487 3.00 509 -0.27 85353 -1.24 49 1.77 5A ES
COMLAB <200 bld <200 bld 49900 0.44 600 1.57 90800 0.45 <200 bld 4A AAS
COMLAB <50 bld <50 bld 48500 -0.52 <50 -3.00 87300 -0.64 <50 bld 3A ES
COMLAB <100 bld <100 bld 48682 -0.39 432 -1.82 88379 -0.30 <100 bld AR AAS
COMLAB 39 -0.58 46 -0.43 49000 -0.17 530 0.16 86700 -0.83 12 -0.67 4A MS
COMLAB <100 bld <100 bld >40000 ald 590 1.37 >40000 ald <100 bld AR ES
COMLAB 50 0.47 50 0.03 48530 -0.50 510 -0.25 89230 -0.04 20 -0.14 4A AAS
COMLAB 45 -0.01 38 -1.37 49500 0.17 527 0.10 89600 0.07 15 -0.47 AR ICP
COMLAB 44 -0.10 44 -0.67 47800 -1.00 496 -0.53 89500 0.04 13 -0.61 4A ES
COMLAB 100 3.00 100 3.00 50400 0.79 700 3.00 89700 0.11 100 3.00 AR ES
COMLAB <63 bld <63 bld 49900 0.44 525 0.06 85800 -1.11 <63 bld 4A ICP
COMLAB 47 0.16 49 -0.08 76293 3.00 509 -0.26 72691 -3.00 7 -1.03 AR,MICR ES
COMLAB 78 3.00 76 3.00 39766 -3.00 513 -0.18 39929 -3.00 37 0.98 4A AAS
COMLAB 69 2.26 71 2.45 49972 0.49 511 -0.22 89058 -0.09 <20 bld 3A,MICR ES
COMLAB 41 -0.39 47 -0.32 48345 -0.62 528 0.12 88500 -0.27 8 -0.94 4A AAS,MS
COMLAB 156 3.00 210 3.00 49547 0.20 1557 3.00 54289 -3.00 14 -0.53 AR ES
COMLAB <50 bld <50 bld 48178 -0.74 536 0.28 87334 -0.63 <50 bld 4A ES
COMLAB 42 -0.30 46 -0.43 49100 -0.10 518 -0.08 89500 0.04 10 -0.80 MS
COMLAB 50 0.47 48 -0.20 47966 -0.88 522 0.00 88445 -0.28 36 0.91 4A ES
COMLAB 43 -0.20 48 -0.20 49200 -0.04 531 0.18 92700 1.04 24 0.12 4A ES
COMLAB 400 3.00 100 3.00 49200 -0.04 500 -0.45 87900 -0.45 100 3.00 4A AAS
COMLAB 41 -0.39 44 -0.67 51312 1.41 524 0.04 94859 1.71 46 1.58 4A ICP
COMLAB 36 -0.86 43 -0.82 48854 -0.27 505 -0.34 89803 0.14 5 -1.16 4A ES
COMLAB 28 -1.64 36 -1.60 50091 0.58 493 -0.59 91800 0.76 <10 bld 4A ES
COMLAB <20 bld <20 -3.00 52100 1.95 544 0.44 95018 1.76 <20 bld 3A ICP
COMLAB 51 0.57 59 1.09 50160 0.62 458 -1.29 93115 1.17 18 -0.28 4A ES
COMLAB 23 -2.12 20 -3.00 46650 -1.79 386 -2.76 82700 -2.07 30 0.51 AR ES
COMLAB 38 -0.68 49 -0.08 49200 -0.04 491 -0.63 93000 1.13 8 -0.94 4A ICP
COMLAB 35 -0.97 42 -0.90 47550 -1.17 538 0.32 88987 -0.12 <20 bld 4A ES
COMLAB <100 bld <100 bld 48297 -0.66 498 -0.49 89709 0.11 <100 bld FUS,4A ES
COMLAB 127 3.00 111 3.00 52604 2.30 675 3.00 102920 3.00 98 3.00 AR AAS
COMLAB 30 -1.45 40 -1.13 48300 -0.65 490 -0.65 89000 -0.11 <10 bld ES
COMLAB <100 bld <100 bld 49835 0.40 642 2.42 94264 1.52 <100 bld 4A AAS
COMLAB 36 -0.87 37 -1.49 54580 3.00 548 0.52 100390 3.00 19 -0.21 3A ICP
COMLAB 43 -0.20 57 0.85 46350 -1.99 609 1.75 86829 -0.79 <2 bld 4A ICP
COMLAB 45 0.04 49 -0.04 43672 -3.00 525 0.05 82769 -2.05 37 0.98 4A AAS
COMLAB <100 bld <100 bld 51100 1.27 600 1.57 92400 0.94 <100 bld 4A AAS
COMLAB <1000 bld <1000 bld 51286 1.40 <1000 bld 89657 0.09 <1000 bld 4A AAS
COMLAB 50 0.47 48 -0.20 47986 -0.87 486 -0.73 >50000 ald 10 -0.80 4A AAS
COMLAB 117 3.00 92 3.00 nr nr 562 0.80 90190 0.26 29 0.45 3A AAS
COMLAB 40 -0.49 45 -0.55 53800 3.00 595 1.47 105000 3.00 25 0.19 4A AAS
COMLAB 52 0.67 50 0.03 46300 -2.03 476 -0.93 82700 -2.07 4 -1.20 AR MS
COMLAB 72 2.63 51 0.19 46142 -2.13 483 -0.79 78446 -3.00 351 3.00 FUS ICP
COMLAB 65 1.92 65 1.79 49628 0.26 621 1.99 86778 -0.80 59 2.44 4A ES
COMLAB 84 3.00 105 3.00 50796 1.06 782 3.00 90130 0.24 35 0.87 4A ICP,AAS
COMLAB <100 bld <100 bld 50696 0.99 795 3.00 86584 -0.86 293 3.00 FUS ICP
COMLAB 45 -0.01 50 0.03 50154 0.62 552 0.60 89154 -0.06 18 -0.28 4A ES
COMLAB 50 0.47 41 -1.02 >10000 ald 595 1.47 >10000 ald 30 0.52 4A ES
COMLAB 46 0.09 46 -0.43 49655 0.28 525 0.06 89537 0.05 9 -0.87 4A ES
COMLAB 178 3.00 140 3.00 49024 -0.16 634 2.25 76528 -3.00 78 3.00 3A ICP
COMLAB nr nr nr nr 51083 1.26 552 0.60 93075 1.15 nr nr 4A AAS
MINELAB 27 -1.74 37 -1.50 51421 1.49 367 -3.00 99102 3.00 5 -1.12 AR AAS
MINELAB 31 -1.35 45 -0.55 48500 -0.52 484 -0.77 >50000 ald 11 -0.74 3A AAS
MINELAB 59 1.30 69 2.21 51946 1.85 640 2.38 95299 1.84 39 1.14 AR ES
MINELAB 87 3.00 168 3.00 52546 2.26 984 3.00 97526 2.53 bld bld FUS XRF
MINELAB 55 0.95 57 0.85 49906 0.45 521 -0.02 87019 -0.73 <50 bld 3A AAS
MINELAB 100 3.00 100 3.00 48300 -0.65 600 1.57 91300 0.60 100 3.00 4A AAS
MINELAB <500 bld <500 bld 51500 1.54 600 1.57 92500 0.97 <500 bld 3A AAS
MINELAB 47 0.19 59 1.09 47221 -1.39 1027 3.00 87863 -0.46 21 -0.08 3A ES
MINELAB 39 -0.55 43 -0.83 51171 1.32 465 -1.14 96524 2.22 11 -0.74 AR ES
MINELAB 400 3.00 <100 bld 48000 -0.86 1300 3.00 88900 -0.14 <100 bld FUS XRF
MINELAB 42 -0.34 43 -0.73 49540 0.20 410 -2.26 88666 -0.22 3 -1.25 AR ES
MINELAB 42 -0.26 48 -0.23 51876 1.80 482 -0.81 nr nr nr nr AR MS
MINELAB 34 -1.06 39 -1.28 50493 0.85 453 -1.39 92626 1.01 4 -1.21 AR ES
MINELAB 50 0.44 52 0.27 48555 -0.48 517 -0.11 88287 -0.33 18 -0.29 4A ES
MINELAB 41 -0.42 45 -0.55 33435 -3.00 460 -1.25 42266 -3.00 49 1.75 AR ES
MINELAB 64 1.82 54 0.50 >10000 ald 542 0.40 >10000 ald nr nr 3A ES
MINELAB 18 -2.60 61 1.32 >10000 ald 629 2.15 >10000 ald 18 -0.28 3A ES
MINELAB <10 -3.00 <10 -3.00 41276 -3.00 484 -0.77 78495 -3.00 <10 bld 3A,MICR ES
MINELAB 123 3.00 104 3.00 50417 0.80 1094 3.00 114517 3.00 1003 3.00 AR ICP
MINELAB <80 bld <80 bld 46130 -2.14 750 3.00 84060 -1.65 <80 bld FUS XRF
MINELAB bld bld bld bld 5107 -3.00 497 -0.51 9193 -3.00 bld bld AR AAS
MINELAB 61 1.48 57 0.83 46360 -1.98 502 -0.42 82979 -1.98 10 -0.78 3A AAS
MINELAB 37 -0.77 46 -0.41 50118 0.59 463 -1.20 89863 0.16 6 -1.08 3A AAS
MINELAB 53 0.76 57 0.85 50520 0.87 523 0.02 95195 1.81 28 0.39 AR ICP
MINELAB 55 0.95 45 -0.55 47656 -1.09 461 -1.23 87050 -0.72 6 -1.08 4A AAS
MINELAB <200 bld <200 bld 49263 0.01 558 0.72 87838 -0.47 <200 bld FUS ICPMINELAB 51 0.60 52 0.30 53879 3.00 453 -1.39 97000 2.37 7 -1.01 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Highlighted materials are low grade and do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 41
Ore Grade Lead Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Lead Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 42
Ore Grade Zinc Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (ppm) 113 131 190189 22458 180960 89
STDEV (ppm) 16 16 6720 782 6021 48
95% CI (ppm) 4 4 1446 159 1288 11
95% CI (%) 3.16% 2.70% 0.76% 0.71% 0.71% 12.20% Ore Grade Zinc Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 77 96 175500 20600 164000 25
MEDIAN (ppm) 110 130 190371 22447 181500 80
MAX (ppm) 154 176 209225 24680 195265 206
IQR (ppm) 20 20 7242 882 7819 47
COUNT 83 81 84 94 85 76
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 96 -1.01 120 -0.69 194620 0.66 21600 -1.10 171000 -1.65 101 0.25 AR ES
COMLAB 100 -0.76 200 3.00 190000 -0.03 22600 0.18 183000 0.34 <100 bld FUS ICP
COMLAB 100 -0.76 130 -0.07 200420 1.52 23060 0.77 189390 1.40 70 -0.40 4A ES
COMLAB 110 -0.15 140 0.55 191000 0.12 22500 0.05 184000 0.50 70 -0.40 4A ES
COMLAB 103 -0.58 128 -0.20 183919 -0.93 22292 -0.21 175829 -0.85 69 -0.42 FUS ES
COMLAB 128 0.94 173 2.58 183089 -1.06 23288 1.06 178272 -0.45 202 2.35 4A AAS
COMLAB 145 1.98 213 3.00 194080 0.58 22646 0.24 182618 0.28 141 1.08 4A ES
COMLAB 123 0.64 128 -0.20 198917 1.30 22475 0.02 186836 0.98 62 -0.56 3A ES
COMLAB 120 0.45 140 0.55 190500 0.05 22100 -0.46 182500 0.26 60 -0.61 4A ES
COMLAB 200 3.00 100 -1.93 187000 -0.47 22800 0.44 179000 -0.33 100 0.23 FUS XRF
COMLAB 100 -0.76 130 -0.07 190000 -0.03 21800 -0.84 183000 0.34 50 -0.81 4A ES
COMLAB 110 -0.15 190 3.00 189230 -0.14 20910 -1.98 180420 -0.09 120 0.64 4A ES
COMLAB 120 0.45 160 1.78 191000 0.12 22800 0.44 182500 0.26 <20 bld FUS ES
COMLAB 120 0.45 150 1.16 194000 0.57 22200 -0.33 181500 0.09 120 0.64 4A ES
COMLAB 80 -1.98 110 -1.31 186500 -0.55 21900 -0.71 173500 -1.24 50 -0.81 4A ICP
COMLAB 100 -0.76 120 -0.69 192000 0.27 22300 -0.20 183000 0.34 100 0.23 4A ES
COMLAB nr nr nr nr 192000 0.27 22500 0.05 183000 0.34 nr nr 4A ES
COMLAB 110 -0.15 140 0.55 192000 0.27 22600 0.18 180500 -0.08 130 0.85 4A ES
COMLAB <100 bld 100 -1.93 192700 0.37 22300 -0.20 185900 0.82 100 0.23 AR ES
COMLAB 50 -3.00 70 -3.00 180500 -1.44 21900 -0.71 173500 -1.24 <10 bld AR ES
COMLAB 110 -0.15 120 -0.69 190500 0.05 22000 -0.59 178000 -0.49 50 -0.81 AR ES
COMLAB 110 -0.15 120 -0.69 194000 0.57 22000 -0.59 180500 -0.08 <10 bld 4A ES
COMLAB nr nr nr nr 189500 -0.10 22300 -0.20 183500 0.42 nr nr 4A AAS
COMLAB 110 -0.15 130 -0.07 185500 -0.70 21700 -0.97 176000 -0.82 30 -1.23 AR AAS
COMLAB 120 0.45 140 0.55 186000 -0.62 21400 -1.35 175500 -0.91 120 0.64 4A AAS
COMLAB 130 1.06 190 3.00 192500 0.34 22500 0.05 181500 0.09 100 0.23 4A ES
COMLAB 80 -1.98 110 -1.31 193500 0.49 22300 -0.20 181000 0.01 80 -0.19 4A ES
COMLAB nr nr nr nr 186100 -0.61 21300 -1.48 185400 0.74 nr nr 4A AAS
COMLAB 138 1.55 145 0.85 215185 3.00 21874 -0.75 216222 3.00 188 2.06 5A ES
COMLAB 100 -0.76 100 -1.93 200500 1.53 23400 1.21 187400 1.07 100 0.23 4A AAS
COMLAB 84 -1.74 128 -0.20 190000 -0.03 22700 0.31 186000 0.84 103 0.29 3A ES
COMLAB 111 -0.09 132 0.05 >100000 ald 22672 0.27 >100000 ald <100 bld AR AAS
COMLAB <200 bld <200 bld 192000 0.27 23000 0.69 183000 0.34 <200 bld NAA
COMLAB 116 0.21 134 0.17 199000 1.31 22400 -0.07 189000 1.34 106 0.35 4A ES
COMLAB <100 bld 119 -0.75 >200000 ald 26809 3.00 >200000 3.00 <100 bld AR ES
COMLAB 110 -0.15 130 -0.07 185920 -0.64 21550 -1.16 177680 -0.54 90 0.02 4A AAS
COMLAB 122 0.58 111 -1.25 205000 2.20 23000 0.69 193000 2.00 100 0.23 AR ICP
COMLAB 114 0.09 133 0.11 186450 -0.56 21500 -1.23 176750 -0.70 55 -0.71 4A,TITR ES
COMLAB 100 -0.76 200 3.00 191500 0.20 22800 0.44 183500 0.42 100 0.23 AR ES
COMLAB 124 0.70 122 -0.57 202000 1.76 24000 1.97 181000 0.01 67 -0.46 4A ICP
COMLAB 99 -0.82 114 -1.05 219625 3.00 25446 3.00 206533 3.00 251 3.00 AR,MICR ES
COMLAB 115 0.15 132 0.05 196612 0.96 22531 0.09 187556 1.10 98 0.19 4A AAS
COMLAB 124 0.69 163 1.95 187614 -0.38 21918 -0.69 177704 -0.54 48 -0.86 3A,MICR ES
COMLAB 103 -0.58 126 -0.32 184758 -0.81 21988 -0.60 175855 -0.85 68 -0.44 4A,TITR AAS,MS
COMLAB <1 -3.00 <1 -3.00 151591 -3.00 23171 0.91 149766 -3.00 <1 bld AR ES
COMLAB 143 1.86 142 0.67 187029 -0.47 22521 0.08 183629 0.44 101 0.25 4A ES
COMLAB 100 -0.76 120 -0.69 176000 -2.11 20600 -2.38 164000 -2.82 70 -0.40 MS
COMLAB 148 2.16 153 1.35 181841 -1.24 22468 0.01 177120 -0.64 101 0.25 4A ES
COMLAB 112 -0.03 133 0.11 190700 0.08 22800 0.44 182400 0.24 91 0.04 4A ES
COMLAB 200 3.00 200 3.00 185000 -0.77 21700 -0.97 178000 -0.49 200 2.31 4A AAS
COMLAB 105 -0.46 126 -0.32 184367 -0.87 22571 0.14 188855 1.31 143 1.12 4A ICP
COMLAB 105 -0.44 123 -0.49 186690 -0.52 22661 0.26 177390 -0.59 65 -0.49 4A ES
COMLAB 108 -0.28 130 -0.07 191500 0.20 22900 0.57 182470 0.25 66 -0.48 4A ES
COMLAB <100 bld <100 bld 185301 -0.73 22103 -0.45 176384 -0.76 <100 bld 3A ICP
COMLAB 151 2.34 203 3.00 176254 -2.07 21396 -1.36 176530 -0.74 102 0.27 4A ES
COMLAB 95 -1.10 120 -0.72 193500 0.49 21200 -1.61 184500 0.59 48 -0.85 AR ES
COMLAB 112 -0.03 135 0.24 187000 -0.47 22200 -0.33 171000 -1.65 89 0.00 4A ICP
COMLAB 105 -0.46 123 -0.50 169000 -3.00 22300 -0.20 157000 -3.00 110 0.44 4A AAS
COMLAB 90 -1.37 113 -1.12 192674 0.37 22683 0.29 187673 1.11 72 -0.36 4A ES
COMLAB 109 -0.22 136 0.30 187110 -0.46 22942 0.62 180532 -0.07 72 -0.36 FUS,4A ES
COMLAB 121 0.52 130 -0.07 168920 -3.00 23404 1.21 161400 -3.00 43 -0.95 AR AAS
COMLAB 110 -0.15 120 -0.69 187000 -0.47 22200 -0.33 178000 -0.49 26 -1.31 ES
COMLAB 146 2.04 168 2.28 207200 2.53 23476 1.30 201667 3.00 237 3.00 4A AAS
COMLAB 114 0.09 145 0.85 216786 3.00 24305 2.36 205187 3.00 73 -0.33 3A ICP
COMLAB 117 0.27 130 -0.07 193433 0.48 22637 0.23 185744 0.79 83 -0.13 4A ICP
COMLAB 126 0.84 129 -0.13 179980 -1.52 21881 -0.74 176566 -0.73 115 0.54 4A AAS
COMLAB 120 0.45 130 -0.07 184800 -0.80 22000 -0.59 175200 -0.96 80 -0.19 4A,TITR AAS
COMLAB <100 bld <100 bld 191182 0.15 21442 -1.30 184909 0.66 <100 bld 4A AAS
COMLAB 112 -0.03 143 0.73 183359 -1.02 22385 -0.09 170205 -1.79 32 -1.19 4A AAS
COMLAB 133 1.25 132 0.05 181500 -1.29 23233 0.99 180479 -0.08 57 -0.67 3A AAS
COMLAB 125 0.76 135 0.24 nr nr 25000 3.00 nr nr 80 -0.19 4A AAS
COMLAB 135 1.37 147 0.98 187000 -0.47 22200 -0.33 179000 -0.33 29 -1.25 AR MS
COMLAB 171 3.00 158 1.67 165614 -3.00 18493 -3.00 154288 -3.00 198 2.28 FUS ICP
COMLAB 77 -2.17 104 -1.68 >100000 ald 22483 0.03 >100000 ald 197 2.25 4A ES
COMLAB 119 0.38 152 1.28 189081 -0.16 22898 0.56 190739 1.62 202 2.36 4A ICP,AAS
COMLAB 107 -0.34 133 0.11 193916 0.55 22132 -0.42 184701 0.62 <100 bld FUS ICP
COMLAB 100 -0.76 131 -0.01 190241 0.01 23348 1.14 174234 -1.12 61 -0.58 4A ES
COMLAB 236 3.00 376 3.00 >10000 ald >10000 ald >10000 ald 92 0.06 4A ES
COMLAB 111 -0.09 124 -0.44 192107 0.29 23068 0.78 187127 1.02 85 -0.08 4A ES
COMLAB 249 3.00 315 3.00 194810 0.69 22426 -0.04 188927 1.32 206 2.44 3A ICP
COMLAB nr nr nr nr 176059 -2.10 22261 -0.25 168654 -2.04 nr nr 4A AAS
MINELAB 113 0.05 131 -0.03 191520 0.20 21744 -0.91 184063 0.52 31 -1.20 AR AAS
MINELAB 127 0.86 153 1.37 197397 1.07 24179 2.20 184513 0.59 371 3.00 AR ES
MINELAB bld bld bld bld 191011 0.12 23946 1.90 184445 0.58 bld bld FUS XRF
MINELAB 107 -0.34 131 -0.01 181649 -1.27 22233 -0.29 177090 -0.64 58 -0.65 3A AAS
MINELAB 200 3.00 200 3.00 197100 1.03 22100 -0.46 186200 0.87 100 0.23 4A AAS
MINELAB <500 bld <500 bld 18400 -3.00 25800 3.00 175000 -0.99 <500 bld 3A AAS
MINELAB 113 0.03 128 -0.20 150710 -3.00 21177 -1.64 149088 -3.00 333 3.00 3A ES
MINELAB 95 -1.05 119 -0.75 204403 2.12 23510 1.35 199477 3.00 39 -1.04 AR ES
MINELAB 200 3.00 <100 bld 188000 -0.33 23200 0.95 177500 -0.57 <100 bld FUS XRF
MINELAB 118 0.35 140 0.56 195868 0.84 22470 0.02 185089 0.69 32 -1.20 AR ES
MINELAB 108 -0.27 nr nr 186883 -0.49 23376 1.17 179159 -0.30 nr nr AR MS
MINELAB 92 -1.23 119 -0.76 200893 1.59 22058 -0.51 192583 1.93 28 -1.27 AR ES
MINELAB 163 3.00 176 2.76 209225 2.83 23977 1.94 195265 2.38 106 0.36 4A ES
MINELAB 96 -1.02 117 -0.86 168315 -3.00 24680 2.84 184232 0.54 60 -0.60 AR ES
MINELAB 154 2.53 156 1.55 >10000 ald >10000 ald >10000 ald nr nr 3A ES
MINELAB 96 -1.01 139 0.48 >10000 ald >10000 ald >10000 ald 137 1.00 3A ES
MINELAB 154 2.51 151 1.24 164593 -3.00 18639 -3.00 158594 -3.00 279 3.00 3A,MICR ES
MINELAB 107 -0.34 96 -2.17 156345 -3.00 28882 3.00 186744 0.96 321 3.00 AR ICP
MINELAB 107 -0.34 126 -0.32 158614 -3.00 19940 -3.00 149962 -3.00 62 -0.56 FUS XRF
MINELAB 101 -0.70 125 -0.38 192561 0.35 22211 -0.32 186269 0.88 bld bld AR AAS
MINELAB 109 -0.22 123 -0.50 191200 0.15 22800 0.44 181000 0.01 25 -1.33 AR AAS
MINELAB 99 -0.81 118 -0.84 167250 -3.00 21105 -1.73 160095 -3.00 31 -1.22 3A AAS
MINELAB 96 -0.99 127 -0.26 198250 1.20 23293 1.07 182917 0.32 41 -1.00 3A AAS
MINELAB 100 -0.76 120 -0.69 187500 -0.40 21500 -1.23 167500 -2.24 35 -1.13 AR ICP
MINELAB 97 -0.93 128 -0.18 175500 -2.19 21500 -1.23 170012 -1.82 78 -0.23 4A AAS
MINELAB <200 bld <200 bld 186898 -0.49 23066 0.78 173005 -1.32 <200 bld FUS ICP
MINELAB 117 0.29 138 0.45 194889 0.70 23785 1.70 189783 1.47 195 2.20 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Highlighted materials are low grade and do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 43
Ore Grade Zinc Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Zinc Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Ore Grade Nickel Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (ppm) 253 137 71 486 36 38993
STDEV (ppm) 21 11 7 31 8 1029
95% CI (ppm) 5 2 2 7 2 236
95% CI (%) 1.79% 1.73% 2.37% 1.42% 5.38% 0.61% Ore Grade Nickel Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 200 112 57 416 19 36850
MEDIAN (ppm) 250 138 70 487 36 38877
MAX (ppm) 301 166 90 561 57 41176
IQR (ppm) 20 12 9 41 9 1375
COUNT 82 79 75 81 72 74
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 242 -0.52 135 -0.21 66 -0.66 459 -0.85 34 -0.21 37127 -1.81 AR ES
COMLAB 270 0.83 150 1.19 80 1.23 520 1.09 <50 bld 40200 1.17 FUS ICP
COMLAB 260 0.35 150 1.19 70 -0.12 490 0.13 40 0.51 40350 1.32 4A ES
COMLAB 290 1.79 160 2.13 90 2.59 520 1.09 40 0.51 40800 1.76 4A ES
COMLAB 240 -0.62 132 -0.49 74 0.42 481 -0.15 43 0.87 35770 -3.00 FUS ES
COMLAB 291 1.84 158 1.94 90 2.59 515 0.93 57 2.57 39389 0.38 4A AAS
COMLAB 230 -1.10 127 -0.96 69 -0.26 436 -1.58 31 -0.58 37398 -1.55 4A ES
COMLAB 244 -0.42 130 -0.68 61 -1.34 497 0.36 28 -0.94 40646 1.61 3A ES
COMLAB 250 -0.14 140 0.26 70 -0.12 490 0.13 40 0.51 38600 -0.38 4A ES
COMLAB <500 bld <500 bld <500 bld <500 bld <500 bld 39000 0.01 FUS XRF
COMLAB 260 0.35 140 0.26 70 -0.12 480 -0.18 40 0.51 38500 -0.48 4A ES
COMLAB 250 -0.14 140 0.26 80 1.23 460 -0.82 40 0.51 38150 -0.82 4A ES
COMLAB 250 -0.14 130 -0.68 60 -1.48 480 -0.18 20 -1.90 38900 -0.09 FUS ES
COMLAB 260 0.35 140 0.26 70 -0.12 490 0.13 40 0.51 38600 -0.38 4A ES
COMLAB 260 0.35 140 0.26 80 1.23 480 -0.18 40 0.51 37600 -1.35 4A ICP
COMLAB 240 -0.62 130 -0.68 70 -0.12 480 -0.18 40 0.51 38800 -0.19 4A ES
COMLAB nr nr nr nr nr nr nr nr nr nr 39700 0.69 4A ES
COMLAB 250 -0.14 140 0.26 70 -0.12 490 0.13 40 0.51 38200 -0.77 4A ES
COMLAB 220 -1.58 120 -1.62 60 -1.48 450 -1.14 20 -1.90 38240 -0.73 AR ES
COMLAB 250 -0.14 130 -0.68 60 -1.48 480 -0.18 30 -0.70 38100 -0.87 AR ES
COMLAB 250 -0.14 130 -0.68 70 -0.12 480 -0.18 30 -0.70 38600 -0.38 AR ES
COMLAB 240 -0.62 130 -0.68 80 1.23 480 -0.18 40 0.51 38100 -0.87 4A ES
COMLAB 260 0.35 140 0.26 80 1.23 510 0.77 30 -0.70 38900 -0.09 AR AAS
COMLAB 250 -0.14 140 0.26 70 -0.12 500 0.45 40 0.51 39100 0.10 4A ES
COMLAB nr nr nr nr nr nr nr nr nr nr 38900 -0.09 4A AAS
COMLAB 241 -0.57 138 0.07 70 -0.12 434 -1.65 34 -0.21 32601 -3.00 5A ES
COMLAB 280 1.31 150 1.19 80 1.23 540 1.72 40 0.51 38860 -0.13 4A AAS
COMLAB 274 1.02 118 -1.80 75 0.56 486 0.01 62 3.00 38500 -0.48 3A ES
COMLAB 247 -0.28 143 0.54 64 -0.93 505 0.61 44 1.00 40000 0.98 NAA
COMLAB 268 0.73 144 0.63 72 0.15 480 -0.18 38 0.27 39600 0.59 4A ES
COMLAB 282 1.40 146 0.82 76 0.69 556 2.23 31 -0.58 37560 -1.39 AR ES
COMLAB 200 -2.54 100 -3.00 <100 bld 500 0.45 <100 bld 39400 0.40 4A AAS
COMLAB 270 0.83 140 0.26 70 -0.12 490 0.13 40 0.51 39500 0.49 AR ICP
COMLAB 248 -0.23 143 0.54 74 0.42 527 1.31 38 0.27 37400 -1.55 4A ES
COMLAB 246 -0.33 138 0.07 69 -0.26 506 0.64 36 0.03 38000 -0.96 4A ICP
COMLAB 301 2.31 125 -1.14 88 2.35 454 -1.02 29 -0.81 41176 2.12 AR,MICR ES
COMLAB 241 -0.57 133 -0.42 68 -0.34 476 -0.31 37 0.13 39142 0.14 3A,MICR ES
COMLAB 244 -0.42 136 -0.12 67 -0.53 471 -0.47 37 0.15 38206 -0.76 4A AAS,MS
COMLAB 259 0.29 135 -0.21 67 -0.49 495 0.28 31 -0.59 37269 -1.67 AR ES
COMLAB 256 0.15 141 0.35 77 0.83 519 1.06 36 0.03 38664 -0.32 4A ES
COMLAB 245 -0.38 130 -0.68 65 -0.80 470 -0.50 35 -0.09 38400 -0.58 MS
COMLAB 274 1.02 146 0.82 75 0.56 523 1.18 37 0.15 39321 0.32 4A ES
COMLAB 270 0.82 146 0.85 75 0.58 528 1.35 39 0.42 39700 0.69 4A ES
COMLAB 300 2.27 100 -3.00 100 3.00 500 0.45 100 3.00 38900 -0.09 4A AAS
COMLAB 261 0.39 144 0.63 70 -0.12 505 0.61 52 1.96 40037 1.01 4A ICP
COMLAB 247 -0.27 133 -0.45 73 0.24 468 -0.58 34 -0.25 40721 1.68 4A ES
COMLAB 256 0.15 144 0.63 77 0.83 497 0.36 44 1.00 38311 -0.66 4A ES
COMLAB 293 1.93 175 3.00 <100 bld 512 0.83 <100 bld 35541 -3.00 3A ICP
COMLAB 228 -1.19 126 -1.05 69 -0.26 454 -1.01 63 3.00 40863 1.82 4A ES
COMLAB 244 -0.42 134 -0.31 66 -0.66 475 -0.36 23 -1.60 38350 -0.62 AR ES
COMLAB 254 0.06 138 0.07 67 -0.53 447 -1.23 35 -0.09 38300 -0.67 4A ICP
COMLAB 254 0.06 144 0.63 70 -0.12 507 0.67 54 2.20 38821 -0.17 4A ES
COMLAB 262 0.44 139 0.16 71 0.01 501 0.48 38 0.27 39430 0.42 FUS,4A ES
COMLAB 155 -3.00 118 -1.80 62 -1.18 192 -3.00 28 -0.96 42420 3.00 AR AAS
COMLAB 250 -0.14 140 0.26 70 -0.12 500 0.45 20 -1.90 37800 -1.16 ES
COMLAB 210 -2.06 142 0.44 <100 bld 340 -3.00 <100 bld 42600 3.00 4A AAS
COMLAB 258 0.25 143 0.54 73 0.28 478 -0.25 41 0.63 43643 3.00 3A ICP
COMLAB 226 -1.29 129 -0.77 66 -0.66 433 -1.68 35 -0.09 37844 -1.12 4A ICP
COMLAB 245 -0.38 148 1.02 85 1.88 468 -0.57 46 1.23 36850 -2.08 4A AAS
COMLAB 260 0.35 160 2.13 80 1.23 500 0.45 <50 bld 38300 -0.67 4A AAS
COMLAB <500 bld <500 bld <500 bld <500 bld <500 bld 39253 0.25 4A AAS
COMLAB 232 -1.00 126 -1.05 69 -0.26 449 -1.17 35 -0.09 38351 -0.62 4A AAS
COMLAB 270 0.83 165 2.60 85 1.91 510 0.77 55 2.32 40500 1.46 4A AAS
COMLAB 241 -0.57 127 -0.96 63 -1.07 452 -1.07 23 -1.54 >1000 ald AR MS
COMLAB 280 1.31 160 2.13 60 -1.48 530 1.40 70 3.00 40460 1.43 FUS XRF
COMLAB 258 0.25 132 -0.49 81 1.37 437 -1.55 40 0.51 32269 -3.00 4A ES
COMLAB 253 -0.01 139 0.14 71 0.07 499 0.40 42 0.77 38283 -0.69 4A ICP
COMLAB 259 0.30 142 0.44 <100 bld 501 0.48 <100 bld 38459 -0.52 FUS ICP
COMLAB 237 -0.76 134 -0.31 74 0.42 507 0.67 41 0.63 38667 -0.32 4A ES
COMLAB 291 1.84 161 2.23 85 1.91 552 2.10 38 0.27 >10000 ald 4A ES
COMLAB 250 -0.14 135 -0.21 66 -0.66 466 -0.63 36 0.03 38565 -0.42 4A ES
COMLAB 245 -0.38 131 -0.59 59 -1.61 476 -0.31 32 -0.45 40801 1.76 3A ICP
COMLAB 297 2.13 141 0.35 nr nr 526 1.28 nr nr 40649 1.61 4A AAS
MINELAB 269 0.80 209 3.00 73 0.27 487 0.04 23 -1.53 39918 0.90 AR AAS
MINELAB 277 1.17 154 1.55 78 0.91 550 2.03 28 -0.89 44736 3.00 AR ES
MINELAB <100 -3.00 <100 -3.00 <100 bld <100 -3.00 <100 bld 38583 -0.40 FUS ES
MINELAB 261 0.39 141 0.35 67 -0.53 478 -0.25 41 0.63 38894 -0.10 3A ES
MINELAB 230 -1.10 125 -1.15 64 -0.93 455 -0.98 29 -0.82 39307 0.31 AR ES
MINELAB 223 -1.44 126 -1.02 63 -1.02 429 -1.80 25 -1.25 40842 1.80 AR ES
MINELAB 253 0.00 141 0.39 73 0.34 505 0.61 33 -0.35 39274 0.27 AR MS
MINELAB 237 -0.78 130 -0.68 65 -0.86 453 -1.04 31 -0.57 43794 3.00 AR ES
MINELAB 300 2.27 166 2.67 97 3.00 532 1.47 57 2.59 39925 0.90 4A ES
MINELAB 220 -1.58 130 -0.65 64 -0.99 425 -1.92 34 -0.21 40881 1.83 AR ES
MINELAB 257 0.20 137 -0.02 71 0.01 510 0.77 35 -0.09 nr nr 3A ES
MINELAB 225 -1.34 120 -1.62 72 0.15 436 -1.58 42 0.75 >10000 ald 3A ES
MINELAB 246 -0.33 138 0.10 75 0.56 464 -0.69 39 0.35 33464 -3.00 3A,MICR ES
MINELAB 243 -0.47 112 -2.37 62 -1.21 606 3.00 32 -0.45 46761 3.00 AR ICP
MINELAB 455 3.00 445 3.00 390 3.00 561 2.39 76 3.00 35332 -3.00 FUS XRF
MINELAB 226 -1.29 127 -0.96 61 -1.41 447 -1.23 22 -1.67 38440 -0.54 AAS
MINELAB 230 -1.10 130 -0.68 70 -0.12 465 -0.66 40 0.51 39200 0.20 AR ICP
MINELAB 253 0.03 137 -0.03 57 -1.91 490 0.13 35 -0.06 38500 -0.48 4A MS
MINELAB 243 -0.46 134 -0.35 71 -0.05 490 0.14 35 -0.14 38087 -0.88 AR ICP
MINELAB 222 -1.48 121 -1.50 48 -3.00 416 -2.23 19 -1.98 39980 0.96 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Highlighted materials are low grade and do not contribute to the error charts.
Method Reading
Zarazma Minerals Studies Company Report Page 45
Ore Grade Nickel Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Nickel Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 46
Ore Grade Silver Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (ppm) 5.9 8.3 47.7 10.4 59.6 4.6
STDEV (ppm) 0.5 0.9 1.7 1.1 2.0 0.4
95% CI (ppm) 0.1 0.2 0.3 0.2 0.4 0.1
95% CI (%) 1.69% 2.05% 0.67% 2.16% 0.66% 1.97% Ore Grade Silver Assay - Mean of Absolute Standardized Values - April 2020MIN (ppm) 4.7 5.9 43.5 7.8 54.3 3.4
MEDIAN (ppm) 6.0 8.2 47.8 10.3 60.0 4.6
MAX (ppm) 7.0 10.2 52.0 13.0 64.2 5.2
IQR (ppm) 0.2 1.0 1.8 1.0 2.6 0.8
COUNT 88 99 103 95 100 85
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 6.4 1.08 8.5 0.25 45.8 -1.12 10.6 0.15 57.5 -1.07 4.3 -0.65 AR ES
COMLAB 6.0 0.23 8.0 -0.34 46.0 -1.00 10.0 -0.39 58.0 -0.82 4.0 -1.36 4A ES
COMLAB 6.3 0.89 8.8 0.63 45.0 -1.61 10.5 0.06 59.8 0.08 4.2 -0.87 4A ES
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 10.0 -0.39 61.0 0.68 4.0 -1.36 4A ES
COMLAB 7.4 3.00 nr nr 48.2 0.33 nr nr 59.8 0.08 5.1 1.25 4A ES
COMLAB 8.0 3.00 10.0 1.99 49.0 0.81 12.0 1.40 62.0 1.18 6.0 3.00 4A AAS
COMLAB 6.4 1.08 9.5 1.41 48.1 0.27 10.2 -0.21 66.0 3.00 5.2 1.48 4A ES
COMLAB 5.8 -0.19 8.2 -0.10 46.9 -0.46 10.8 0.32 58.5 -0.57 4.2 -0.89 3A ES
COMLAB 5.0 -1.88 8.0 -0.34 48.0 0.21 9.0 -1.29 61.0 0.68 4.0 -1.36 4A ES
COMLAB 8.0 3.00 9.0 0.83 47.0 -0.40 14.0 3.00 60.0 0.18 5.0 1.01 3A AAS
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 10.0 -0.39 60.0 0.18 4.0 -1.36 4A ES
COMLAB 6.0 0.23 8.0 -0.34 47.0 -0.40 10.0 -0.39 59.0 -0.32 5.0 1.01 4A ES
COMLAB 6.0 0.23 9.0 0.83 49.0 0.81 10.0 -0.39 62.0 1.18 6.0 3.00 FUS ES
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 11.0 0.50 59.0 -0.32 5.0 1.01 4A ES
COMLAB 6.0 0.23 9.0 0.83 48.0 0.21 10.0 -0.39 60.0 0.18 4.0 -1.36 4A ICP
COMLAB 6.0 0.23 9.0 0.83 47.0 -0.40 10.0 -0.39 60.0 0.18 5.0 1.01 4A ES
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 10.0 -0.39 59.0 -0.32 4.0 -1.36 4A ES
COMLAB 6.0 0.23 8.0 -0.34 50.0 1.42 11.0 0.50 63.0 1.68 5.0 1.01 AR ES
COMLAB 5.0 -1.88 7.0 -1.50 47.0 -0.40 9.0 -1.29 60.0 0.18 5.0 1.01 AR ES
COMLAB 6.0 0.23 9.0 0.83 48.0 0.21 10.0 -0.39 58.0 -0.82 5.0 1.01 AR ES
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 10.0 -0.39 60.0 0.18 4.0 -1.36 4A ES
COMLAB nr nr 10.0 1.99 51.0 2.02 8.0 -2.18 62.0 1.18 nr nr 4A AAS
COMLAB 6.0 0.23 8.0 -0.34 47.0 -0.40 10.0 -0.39 60.0 0.18 4.0 -1.36 AR AAS
COMLAB 6.0 0.23 10.0 1.99 47.0 -0.40 11.0 0.50 61.0 0.68 6.0 3.00 4A AAS
COMLAB 6.0 0.23 9.0 0.83 47.0 -0.40 11.0 0.50 60.0 0.18 4.0 -1.36 4A ES
COMLAB 5.0 -1.88 8.0 -0.34 49.0 0.81 9.0 -1.29 62.0 1.18 4.0 -1.36 4A ES
COMLAB nr nr nr nr 49.0 0.81 10.0 -0.39 61.0 0.68 nr nr 4A ES
COMLAB 6.4 1.08 8.6 0.36 47.1 -0.34 10.3 -0.12 60.0 0.18 4.6 0.06 5A ES
COMLAB 6.0 0.23 9.0 0.83 49.0 0.81 11.0 0.50 60.0 0.18 5.0 1.01 4A AAS
COMLAB 5.8 -0.19 8.2 -0.10 49.8 1.30 11.2 0.68 61.2 0.78 4.6 0.06 3A MS
COMLAB 6.0 0.23 9.0 0.83 48.0 0.21 11.0 0.50 64.0 2.18 5.0 1.01 AR AAS
COMLAB 6.0 0.23 8.6 0.36 48.0 0.21 11.0 0.50 62.0 1.18 5.0 1.01 NAA
COMLAB 6.0 0.13 8.5 0.25 49.7 1.24 11.2 0.68 60.2 0.28 4.8 0.53 4A MS
COMLAB 7.0 2.34 9.0 0.83 49.0 0.81 11.0 0.50 62.0 1.18 5.0 1.01 AR ES
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 11.0 0.50 61.0 0.68 4.0 -1.36 4A AAS
COMLAB 6.0 0.23 8.5 0.25 50.0 1.42 11.0 0.50 62.0 1.18 5.0 1.01 AR ICP
COMLAB 6.2 0.65 8.8 0.60 47.8 0.09 10.6 0.15 59.3 -0.17 4.4 -0.42 4A ES
COMLAB 6.0 0.23 8.0 -0.34 49.0 0.81 11.0 0.50 60.0 0.18 2.0 -3.00 AR ES
COMLAB 6.0 0.23 8.0 -0.34 47.0 -0.40 10.0 -0.39 59.0 -0.32 4.0 -1.36 4A ICP
COMLAB 4.7 -2.47 5.7 -3.00 46.7 -0.59 7.8 -2.32 60.0 0.18 3.4 -2.69 AR,MICR ES
COMLAB 6.0 0.23 8.2 -0.10 47.7 0.03 10.2 -0.21 58.2 -0.72 4.8 0.53 4A AAS
COMLAB 6.7 1.71 9.7 1.64 45.1 -1.55 17.1 3.00 57.1 -1.27 4.1 -1.13 3A,MICR ES
COMLAB 5.0 -1.88 7.0 -1.50 44.0 -2.21 9.0 -1.29 55.0 -2.32 4.0 -1.36 4A AAS
COMLAB <1.0 -3.00 6.4 -2.23 44.8 -1.76 19.7 3.00 57.6 -1.00 <1.0 -3.00 AR AAS
COMLAB 5.0 -1.88 7.0 -1.50 47.0 -0.40 11.0 0.50 60.0 0.18 <5.0 bld 4A ES
COMLAB 6.0 0.23 8.0 -0.34 46.0 -1.00 10.0 -0.39 56.0 -1.82 4.0 -1.36 MS
COMLAB 8.0 3.00 9.0 0.83 47.0 -0.40 13.0 2.29 58.0 -0.82 5.0 1.01 4A ES
COMLAB 6.1 0.44 8.6 0.36 48.2 0.33 10.7 0.23 59.8 0.08 4.6 0.06 4A ES
COMLAB 6.0 0.23 8.0 -0.34 50.0 1.42 10.0 -0.39 62.0 1.18 <5.0 bld 4A AAS
COMLAB 8.0 3.00 13.0 3.00 53.0 3.00 14.0 3.00 66.0 3.00 7.0 3.00 3A AAS
COMLAB 6.2 0.65 9.4 1.29 48.7 0.63 11.2 0.68 59.3 -0.17 4.6 0.06 4A ICP
COMLAB 6.0 0.17 9.4 1.26 49.0 0.81 9.9 -0.45 61.9 1.13 4.5 -0.13 4A AAS
COMLAB 5.0 -1.88 8.0 -0.34 47.0 -0.40 10.0 -0.39 58.0 -0.82 5.0 1.01 4A ES
COMLAB 6.4 1.12 9.0 0.82 48.0 0.20 10.6 0.17 59.6 -0.03 4.9 0.82 4A ICP
COMLAB 6.0 0.23 9.0 0.83 42.0 -3.00 10.0 -0.39 53.0 -3.00 4.0 -1.36 4A ES
COMLAB 6.7 1.71 10.2 2.23 47.0 -0.40 14.0 3.00 57.0 -1.32 4.3 -0.65 AR ES
COMLAB 6.4 1.08 8.0 -0.34 47.7 0.03 10.4 -0.03 59.1 -0.27 4.6 0.06 4A ICP
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 11.0 0.50 57.0 -1.32 5.0 1.01 4A AAS
COMLAB <5.0 bld 10.0 1.99 46.0 -1.00 20.0 3.00 59.0 -0.32 6.0 3.00 4A ES
COMLAB 6.0 0.23 9.0 0.83 49.0 0.81 10.0 -0.39 59.0 -0.32 5.0 1.01 AR ES
COMLAB 5.9 0.02 8.3 0.01 49.6 1.18 10.1 -0.30 60.0 0.18 4.5 -0.08 AAS
COMLAB 5.1 -1.67 7.7 -0.69 42.1 -3.00 6.9 -3.00 56.9 -1.37 <5.0 bld 4A AAS
COMLAB 5.3 -1.25 8.4 0.13 49.4 1.05 9.1 -1.20 63.9 2.13 4.7 0.30 1A ICP
COMLAB 5.6 -0.61 8.2 -0.10 48.0 0.21 10.2 -0.21 61.0 0.68 4.5 -0.18 AR AAS
COMLAB 6.0 0.21 8.9 0.76 48.8 0.69 12.4 1.74 60.6 0.48 5.0 1.08 4A AAS
COMLAB 5.3 -1.25 7.6 -0.80 48.2 0.33 9.4 -0.93 62.0 1.18 4.3 -0.65 4A AAS
COMLAB 6.0 0.23 8.0 -0.34 48.0 0.21 11.0 0.50 51.0 -3.00 5.0 1.01 4A AAS
COMLAB 5.7 -0.40 7.3 -1.15 47.2 -0.28 10.2 -0.21 59.8 0.08 4.6 0.06 4A AAS
COMLAB 6.0 0.23 10.0 1.99 50.0 1.42 12.0 1.40 60.0 0.18 5.0 1.01 4A AAS
COMLAB 6.2 0.65 7.5 -0.92 46.7 -0.58 9.5 -0.84 55.7 -1.97 4.0 -1.36 AR MS
COMLAB 4.3 -3.00 7.1 -1.36 39.3 -3.00 8.8 -1.47 61.5 0.92 2.4 -3.00 4A ICP
COMLAB 9.0 3.00 12.0 3.00 55.0 3.00 20.0 3.00 68.0 3.00 7.0 3.00 4A ES
COMLAB 5.1 -1.61 7.9 -0.48 43.9 -2.26 12.1 1.45 54.3 -2.67 4.4 -0.32 4A ICP,AAS
COMLAB 6.0 0.23 9.0 0.83 47.0 -0.40 16.0 3.00 59.0 -0.32 6.0 3.00 3A AAS
COMLAB 4.8 -2.30 6.7 -1.85 46.5 -0.70 8.9 -1.38 56.8 -1.42 3.6 -2.31 4A ES
COMLAB 5.9 0.02 8.3 0.01 48.6 0.57 1.6 -3.00 2.8 -3.00 4.8 0.53 AR AAS
COMLAB 6.1 0.44 8.5 0.25 47.1 -0.34 10.3 -0.12 59.7 0.03 4.7 0.18 4A ES
COMLAB 6.0 0.23 6.0 -2.66 45.0 -1.61 11.0 0.50 53.0 -3.00 5.0 1.01 3A ICP
COMLAB 6.4 1.08 8.6 0.36 47.1 -0.34 10.7 0.23 58.7 -0.47 5.1 1.25 4A AAS
MINELAB 5.7 -0.49 8.0 -0.30 48.2 0.31 8.8 -1.45 62.5 1.41 4.8 0.44 AR AAS
MINELAB 6.0 0.23 8.0 -0.34 48.0 0.21 11.0 0.50 60.0 0.18 4.0 -1.36 3A AAS
MINELAB 6.0 0.23 8.0 -0.34 46.0 -1.00 10.0 -0.39 58.0 -0.82 5.0 1.01 3A AAS
MINELAB 3.3 -3.00 5.9 -2.76 45.6 -1.28 12.3 1.65 58.6 -0.53 1.1 -3.00 AR ES
MINELAB 5.7 -0.40 7.7 -0.69 45.6 -1.24 10.0 -0.39 60.2 0.28 4.5 -0.18 AR AAS
MINELAB 7.8 3.00 8.0 -0.34 47.3 -0.22 12.5 1.85 60.2 0.28 4.9 0.77 AD AAS
MINELAB 6.3 0.86 8.2 -0.10 47.7 0.03 10.2 -0.21 60.3 0.33 4.8 0.53 3A AAS
MINELAB 10.0 3.00 12.0 3.00 52.0 2.63 15.0 3.00 59.0 -0.32 9.0 3.00 4A AAS
MINELAB <10.0 bld <10.0 bld 48.0 0.21 13.0 2.29 60.0 0.18 <10.0 bld 3A AAS
MINELAB 4.0 -3.00 4.0 -3.00 42.0 -3.00 6.0 -3.00 47.0 -3.00 3.0 -3.00 3A ES
MINELAB 10.8 3.00 13.6 3.00 46.8 -0.52 14.4 3.00 57.7 -0.98 7.7 3.00 AR ES
MINELAB 9.0 3.00 11.0 3.00 51.0 2.02 13.0 2.29 62.0 1.18 6.0 3.00 AR AAS
MINELAB 5.0 -1.88 8.0 -0.34 45.0 -1.61 8.0 -2.18 45.0 -3.00 3.0 -3.00 3A AAS
MINELAB 6.0 0.23 8.0 -0.34 51.0 2.02 11.0 0.50 64.0 2.18 5.0 1.01 AR AAS
MINELAB 6.1 0.36 8.6 0.34 49.2 0.92 11.3 0.75 61.6 0.98 4.6 -0.04 AR ES
MINELAB 6.3 0.78 8.6 0.30 48.5 0.52 11.0 0.47 60.6 0.48 4.5 -0.18 AR MS
MINELAB 6.4 1.14 7.7 -0.73 46.8 -0.53 9.2 -1.07 58.3 -0.68 4.5 -0.20 AR ES
MINELAB 12.0 3.00 17.0 3.00 92.7 3.00 20.0 3.00 115.6 3.00 9.6 3.00 4A ES
MINELAB 6.3 0.82 8.5 0.20 46.7 -0.55 10.9 0.40 58.4 -0.61 4.5 -0.08 AR ES
MINELAB 5.0 -1.88 7.0 -1.50 47.0 -0.40 13.0 2.29 59.0 -0.32 nr nr 3A ES
MINELAB 5.8 -0.11 8.6 0.35 48.2 0.30 10.2 -0.20 60.7 0.51 5.1 1.25 AR AAS
MINELAB 8.5 3.00 11.7 3.00 47.6 -0.03 26.1 3.00 59.1 -0.27 4.3 -0.65 3A ES
MINELAB 5.8 -0.11 8.7 0.44 51.9 2.57 8.8 -1.48 64.2 2.28 <0.1 -3.00 AR ES
MINELAB 5.7 -0.47 8.1 -0.23 45.2 -1.49 9.7 -0.69 56.2 -1.72 4.7 0.27 AR AAS
MINELAB 1.5 -3.00 6.5 -2.12 50.4 1.65 30.8 3.00 77.3 3.00 7.1 3.00 AR ICP
MINELAB 4.9 -2.18 6.4 -2.16 45.8 -1.15 8.0 -2.15 57.7 -0.97 4.5 -0.13 3A AAS
MINELAB 5.8 -0.19 7.6 -0.80 47.4 -0.16 10.0 -0.39 59.3 -0.17 5.0 1.01 AR AAS
MINELAB 6.0 0.23 9.0 0.83 47.8 0.09 10.9 0.41 58.3 -0.67 5.0 1.01 AR AAS
MINELAB 5.5 -0.76 8.0 -0.34 43.5 -2.52 9.3 -1.06 61.3 0.83 4.2 -0.94 AAS
MINELAB 7.5 3.00 8.9 0.71 47.7 0.03 11.1 0.59 57.9 -0.87 4.7 0.30 3A AAS
MINELAB 7.5 3.00 8.8 0.60 47.0 -0.40 11.1 0.59 57.2 -1.22 4.6 0.06 3A AAS
MINELAB 5.7 -0.40 8.6 0.36 53.6 3.00 9.4 -0.93 67.0 3.00 4.6 0.06 3A AAS
MINELAB 7.0 2.34 9.0 0.83 44.0 -2.21 12.0 1.40 55.0 -2.32 5.0 1.01 FA ICP
MINELAB 6.5 1.29 8.4 0.13 46.1 -0.94 10.8 0.32 57.0 -1.32 4.8 0.53 4A AAS
MINELAB 5.1 -1.61 7.8 -0.59 46.6 -0.64 12.2 1.61 59.3 -0.18 5.0 1.03 AR ICP
MINELAB 6.2 0.55 8.2 -0.16 46.5 -0.70 9.5 -0.84 61.3 0.81 4.8 0.51 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 47
Ore Grade Silver Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Silver Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 48
Ore Grade Sulphur Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
MEAN (%) 20.24 9.29 10.77 28.53 11.03 0.05
STDEV (%) 0.73 0.30 0.33 1.06 0.31 0.01
95% CI (%) 0.15 0.06 0.07 0.22 0.07 0.00
95% CI (rel %) 0.75% 0.68% 0.67% 0.78% 0.61% 5.64% Ore Grade Sulphur Assay - Mean of Absolute Standardized Values - April 2020MIN (%) 18.47 8.46 9.98 25.79 10.30 0.02
MEDIAN (%) 20.25 9.28 10.80 28.50 11.00 0.04
MAX (%) 22.20 10.03 11.64 31.20 11.77 0.07
IQR (%) 0.84 0.34 0.40 1.65 0.40 0.01
COUNT 88 87 84 88 84 70
Standard Reference GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ZARAZMA TEHRAN 21.18 1.30 9.92 2.13 10.93 0.47 29.85 1.24 10.56 -1.50 0.04 -0.18 AR ES
COMLAB 20.10 -0.19 9.38 0.31 11.10 0.98 27.80 -0.69 11.10 0.24 0.06 1.34 CSA IR
COMLAB 19.60 -0.88 10.02 2.46 10.99 0.65 >20.00 ald 11.52 1.58 0.05 0.42 4A ES
COMLAB >20.00 ald 9.35 0.21 10.80 0.08 >20.00 ald 11.20 0.56 0.04 -0.50 CSA IR
COMLAB 20.20 -0.06 9.30 0.04 10.70 -0.22 28.50 -0.03 11.10 0.24 0.04 -0.50 CSA IR
COMLAB 21.41 1.61 10.19 3.00 12.02 3.00 29.73 1.13 12.18 3.00 0.06 1.34 CSA IR
COMLAB 23.70 3.00 10.86 3.00 12.51 3.00 31.20 2.52 13.80 3.00 0.07 2.26 4A ES
COMLAB 21.15 1.25 9.52 0.78 10.90 0.38 30.08 1.46 11.14 0.36 <0.05 bld 3A ES
COMLAB 19.20 -1.43 8.95 -1.14 10.65 -0.37 27.30 -1.16 10.90 -0.40 0.04 -0.50 CSA IR
COMLAB 20.60 0.50 8.85 -1.48 10.10 -2.01 28.50 -0.03 10.55 -1.52 0.04 -0.50 FUS XRF
COMLAB 19.20 -1.43 9.05 -0.80 10.70 -0.22 27.70 -0.78 11.15 0.40 0.06 1.34 4A ES
COMLAB 20.25 0.01 9.39 0.34 10.85 0.23 25.79 -2.58 11.00 -0.08 0.06 1.34 4A ES
COMLAB 20.10 -0.19 9.37 0.27 10.55 -0.67 27.90 -0.60 11.05 0.08 0.05 0.42 FUS ES
COMLAB 20.20 -0.06 9.43 0.48 10.55 -0.67 27.20 -1.26 10.70 -1.04 0.06 1.34 4A ES
COMLAB 20.70 0.63 9.25 -0.13 11.10 0.98 29.10 0.54 11.00 -0.08 0.01 -3.00 CSA IR
COMLAB 19.80 -0.61 10.20 3.00 10.90 0.38 28.60 0.06 11.20 0.56 0.04 -0.50 CSA IR
COMLAB 20.60 0.50 9.08 -0.70 10.50 -0.82 29.00 0.44 10.80 -0.72 0.04 -0.50 CSA IR
COMLAB 19.80 -0.61 9.27 -0.06 10.65 -0.37 28.10 -0.41 10.95 -0.24 0.06 1.34 4A ES
COMLAB 19.01 -1.69 9.27 -0.06 10.57 -0.61 27.69 -0.79 10.88 -0.47 0.05 0.42 AR ES
COMLAB >10.00 ald 9.24 -0.16 >10.00 ald >10.00 ald 9.68 -3.00 0.06 1.34 AR ES
COMLAB >10.00 ald 9.01 -0.94 >10.00 ald >10.00 ald >10.00 ald 0.06 1.34 AR ES
COMLAB 20.10 -0.19 9.11 -0.60 10.95 0.53 28.40 -0.12 11.10 0.24 0.04 -0.50 CSA IR
COMLAB 20.40 0.22 9.17 -0.40 10.85 0.23 28.70 0.16 11.10 0.24 0.05 0.42 CSA IR
COMLAB 19.25 -1.36 9.18 -0.37 10.35 -1.26 27.40 -1.07 10.30 -2.32 0.06 1.34 4A ES
COMLAB 19.95 -0.40 9.11 -0.60 10.40 -1.11 27.90 -0.60 10.70 -1.04 nr nr CSA IR
COMLAB 24.59 3.00 10.93 3.00 11.91 3.00 29.88 1.27 11.57 1.74 0.76 3.00 CSA IR
COMLAB 19.42 -1.13 9.13 -0.53 10.56 -0.64 26.54 -1.88 10.91 -0.37 <0.05 bld AR ES
COMLAB 20.40 0.22 9.49 0.68 11.00 0.68 28.70 0.16 11.30 0.88 0.04 -0.50 CSA IR
COMLAB 20.30 0.08 9.58 0.98 10.80 0.08 28.50 -0.03 10.60 -1.36 0.05 -0.04 4A ES
COMLAB 20.19 -0.07 9.28 -0.03 11.49 2.15 28.27 -0.25 11.40 1.20 <0.05 bld AR ES
COMLAB 19.99 -0.34 9.09 -0.67 10.51 -0.79 28.97 0.41 10.91 -0.37 0.08 3.00 CSA IR
COMLAB 20.00 -0.33 9.44 0.51 11.20 1.28 28.00 -0.50 11.50 1.52 0.06 0.88 AR ICP
COMLAB 19.76 -0.66 9.46 0.58 10.63 -0.43 28.84 0.29 11.14 0.36 0.07 1.98 4A ES
COMLAB 21.10 1.18 9.42 0.44 10.80 0.08 29.80 1.20 11.20 0.56 0.03 -1.42 CSA IR
COMLAB 20.65 0.56 8.46 -2.79 10.40 -1.11 27.65 -0.83 10.85 -0.56 0.34 3.00 CSA IR
COMLAB 19.63 -0.84 8.90 -1.31 10.83 0.17 27.73 -0.76 11.17 0.46 0.04 -0.50 CSA IR
COMLAB 19.97 -0.37 9.30 0.04 10.90 0.38 28.00 -0.50 11.23 0.66 0.05 0.42 CSA IR
COMLAB 19.96 -0.39 9.06 -0.77 10.39 -1.14 28.16 -0.35 10.75 -0.88 0.03 -1.42 FUS,CSA GRAV,IR
COMLAB 19.50 -1.02 9.60 1.05 10.98 0.62 27.67 -0.81 11.39 1.16 0.02 -2.34 CSA IR
COMLAB 20.02 -0.30 9.20 -0.30 10.32 -1.35 27.19 -1.26 10.47 -1.78 0.05 0.42 4A ES
COMLAB 19.10 -1.57 8.84 -1.51 9.98 -2.37 27.20 -1.26 10.50 -1.68 0.04 -0.50 ES
COMLAB 20.61 0.51 9.38 0.31 10.71 -0.19 28.56 0.03 11.15 0.40 0.05 0.42 4A ES
COMLAB 20.40 0.22 9.35 0.21 10.47 -0.91 28.50 -0.03 11.42 1.26 0.18 3.00 4A ES
COMLAB 20.90 0.91 9.48 0.64 10.90 0.38 29.40 0.82 11.30 0.88 <0.01 -3.00 CSA IR
COMLAB 19.70 -0.74 9.98 2.33 11.00 0.68 18.90 -3.00 11.30 0.88 0.03 -1.42 CSA IR
COMLAB 20.17 -0.10 9.25 -0.13 10.79 0.05 27.79 -0.70 11.20 0.56 0.02 -2.34 CSA IR
COMLAB 20.36 0.17 9.45 0.54 10.73 -0.13 28.40 -0.12 10.46 -1.81 <0.05 bld AR ES
COMLAB 19.73 -0.70 9.40 0.38 10.56 -0.64 27.67 -0.81 10.85 -0.56 0.04 -0.50 4A ES
COMLAB 18.47 -2.44 8.74 -1.85 10.04 -2.19 29.97 1.36 10.93 -0.31 <0.10 bld 4A ICP
COMLAB 20.79 0.76 9.74 1.51 11.64 2.58 30.49 1.85 12.02 3.00 0.05 0.79 4A ES
COMLAB 20.00 -0.33 9.36 0.24 10.80 0.08 28.20 -0.31 10.95 -0.24 0.04 -0.50 CSA IR
COMLAB 20.80 0.77 9.82 1.79 10.70 -0.22 28.50 -0.03 11.00 -0.08 0.12 3.00 4A ICP
COMLAB 20.00 -0.33 9.62 1.12 11.20 1.28 26.30 -2.10 11.30 0.88 0.04 -0.50 CSA IR
COMLAB 19.00 -1.71 9.00 -0.97 10.01 -2.28 27.84 -0.65 10.81 -0.69 0.05 0.42 4A ES
COMLAB 20.51 0.37 9.43 0.48 11.18 1.22 28.63 0.09 11.31 0.91 0.04 -0.50 CSA IR
COMLAB 19.78 -0.63 8.98 -1.04 10.54 -0.70 28.08 -0.43 10.61 -1.33 0.04 -0.32 CSA IR
COMLAB 21.26 1.40 10.20 3.00 11.98 3.00 26.67 -1.76 12.53 3.00 0.04 -0.50 4A AAS
COMLAB 19.16 -1.49 9.01 -0.94 10.70 -0.22 29.80 1.20 10.71 -1.01 0.04 -0.50 1A ICP
COMLAB 19.93 -0.43 9.47 0.61 11.23 1.37 27.27 -1.19 11.37 1.10 0.05 0.42 CSA IR
COMLAB 20.90 0.91 9.19 -0.33 10.80 0.08 29.40 0.82 10.90 -0.40 0.04 -0.50 CSA IR
COMLAB 19.50 -1.02 9.09 -0.67 10.50 -0.82 28.10 -0.41 10.80 -0.72 0.04 -0.50 CSA IR
COMLAB 20.30 0.08 9.53 0.81 10.90 0.38 29.40 0.82 11.40 1.20 0.04 -0.50 CSA IR
COMLAB 20.74 0.69 9.18 -0.37 10.84 0.20 29.66 1.06 11.02 -0.02 0.04 -0.50 CSA IR
COMLAB 0.05 0.51 CSA IR
COMLAB 20.70 0.63 9.40 0.38 10.90 0.38 29.40 0.82 11.00 -0.08 0.03 -1.42 CSA IR
COMLAB 19.50 -1.02 10.00 2.39 11.40 1.88 29.90 1.29 11.40 1.20 0.03 -1.05 CSA IR
COMLAB 20.26 0.03 9.34 0.17 10.50 -0.82 >25.00 ald 10.92 -0.34 0.03 -1.42 4A ES
COMLAB 20.30 0.08 9.12 -0.57 11.09 0.95 29.76 1.16 10.93 -0.31 0.05 0.42 4A,CSA ICP,IR
COMLAB 19.86 -0.52 9.10 -0.63 10.73 -0.13 28.41 -0.11 10.96 -0.21 0.05 0.42 CSA IR
COMLAB 19.51 -1.01 8.98 -1.04 10.46 -0.94 27.54 -0.93 10.52 -1.62 0.07 2.26 CSA IR
COMLAB 20.82 0.80 9.25 -0.13 10.64 -0.40 29.52 0.93 10.96 -0.21 0.04 -0.50 CSA IR
COMLAB 18.73 -2.08 8.86 -1.44 10.35 -1.26 27.57 -0.91 10.57 -1.46 0.11 3.00 AR,IH GRAV
MINELAB 20.34 0.14 8.95 -1.14 10.95 0.53 28.82 0.27 10.98 -0.15 0.05 0.42 CSA IR
MINELAB 22.15 2.63 10.03 2.50 11.83 3.00 30.22 1.59 12.03 3.00 0.06 1.34 CSA IR
MINELAB 21.70 2.01 9.14 -0.50 11.20 1.28 30.80 2.14 11.75 2.32 0.09 3.00 CSA IR
MINELAB 19.03 -1.67 9.05 -0.80 10.59 -0.55 26.64 -1.78 10.66 -1.17 0.04 -0.50 CSA IR
MINELAB 19.40 -1.16 8.63 -2.22 10.30 -1.41 27.40 -1.07 10.50 -1.68 0.05 0.42 CSA IR
MINELAB 20.33 0.12 9.41 0.41 10.56 -0.64 27.97 -0.53 11.01 -0.05 0.06 1.34 3A ES
MINELAB 20.25 0.01 9.48 0.64 10.80 0.08 28.85 0.30 11.20 0.56 <0.50 bld FUS XRF
MINELAB 20.05 -0.26 9.31 0.07 10.82 0.14 29.58 0.99 11.27 0.78 <0.01 -3.00 CSA IR
MINELAB 20.28 0.05 9.01 -0.94 11.00 0.68 29.01 0.45 11.14 0.36 0.04 -0.50 AR ES
MINELAB 20.23 -0.01 9.13 -0.53 11.59 2.45 29.30 0.72 11.50 1.52 0.04 -0.50 CSA IR
MINELAB 20.28 0.05 9.30 0.04 11.19 1.25 28.66 0.12 11.19 0.52 0.03 -1.42 CSA IR
MINELAB 21.14 1.24 9.74 1.52 11.28 1.52 27.64 -0.84 11.77 2.38 <0.09 bld CSA IR
MINELAB 19.98 -0.36 9.29 0.01 10.58 -0.58 28.57 0.04 10.95 -0.24 nr nr 3A ES
MINELAB 19.29 -1.31 18.83 3.00 10.46 -0.94 27.76 -0.73 10.69 -1.08 0.04 -0.50 CSA IR
MINELAB 21.35 1.53 9.71 1.42 10.93 0.47 27.72 -0.77 11.71 2.19 0.32 3.00 3A ES
MINELAB 20.08 -0.23 9.36 0.24 10.96 0.57 27.34 -1.12 11.06 0.10 0.05 0.24 CSA IR
MINELAB 20.58 0.47 9.25 -0.13 10.69 -0.25 29.64 1.05 10.71 -1.01 0.03 -1.42 CSA IR
MINELAB 22.20 2.70 9.14 -0.50 10.90 0.38 29.90 1.29 10.80 -0.72 <0.10 bld CSA IR
MINELAB <0.01 -3.00 <0.01 -3.00 <0.01 -3.00 <0.01 -3.00 <0.01 -3.00 2.41 3.00 AR ICP
MINELAB 20.95 0.98 9.77 1.62 11.01 0.71 29.05 0.49 11.30 0.88 0.01 -3.00 FUS XRF
MINELAB 21.08 1.16 9.50 0.71 11.26 1.46 29.63 1.04 11.44 1.32 0.06 1.34 CSA IR
MINELAB 19.56 -0.94 8.84 -1.51 10.45 -0.97 27.26 -1.20 10.64 -1.24 0.04 -0.41 CSA IR
MINELAB 20.46 0.30 7.70 -3.00 8.82 -3.00 29.00 0.44 8.94 -3.00 0.04 -0.50 CSA IR
MINELAB 21.65 1.94 9.66 1.25 11.85 3.00 28.65 0.11 12.05 3.00 0.10 3.00 CSA IR
MINELAB 20.70 0.63 9.24 -0.16 10.85 0.23 29.15 0.58 11.00 -0.08 <0.05 bld CSA IR
MINELAB 20.68 0.61 9.44 0.51 10.70 -0.22 29.52 0.93 10.95 -0.24 0.06 1.34 CSA IR
MINELAB 20.56 0.44 9.15 -0.47 10.55 -0.67 28.21 -0.30 11.14 0.36 0.04 -0.50 CSA IR
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 49
Ore Grade Sulphur Assay - Mean of Absolute Standardized Values - April 2020 Ore Grade Sulphur Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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Zarazma Minerals Studies Company ReportPage 50
Sulphur Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GS320-1 GS320-2 GS320-3 GS320-4 GS320-5 GS320-6 GS320-7 GS320-8 GS320-9 GS320-10
MEAN (%) 20.30 9.30 0.34 0.54 0.58 0.91 0.95 0.04 10.81 0.27
STDEV (%) 0.76 0.35 0.02 0.02 0.03 0.04 0.05 0.01 0.31 0.02
95% CI (%) 0.15 0.07 0.00 0.00 0.01 0.01 0.01 0.00 0.06 0.00
95% CI (rel %) 0.75% 0.75% 1.19% 0.92% 1.03% 0.92% 0.97% 5.35% 0.59% 1.52% Sulphur Assay - Mean of Absolute Standardized Values - April 2020MIN (%) 18.81 8.42 0.29 0.49 0.52 0.82 0.83 0.02 10.20 0.23
MEDIAN (%) 20.30 9.27 0.34 0.54 0.57 0.91 0.95 0.04 10.80 0.27
MAX (%) 22.20 10.22 0.39 0.60 0.65 1.00 1.05 0.07 11.57 0.33
IQR (%) 0.94 0.46 0.03 0.03 0.04 0.06 0.07 0.01 0.40 0.02
COUNT 97 99 94 90 95 94 94 79 92 95
Standard Reference GS320-1 GS320-2 GS320-3 GS320-4 GS320-5 GS320-6 GS320-7 GS320-8 GS320-9 GS320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 20.00 -0.40 9.17 -0.36 0.35 0.43 0.53 -0.33 0.54 -1.21 0.85 -1.49 0.90 -1.14 0.05 0.71 11.10 0.91 0.28 0.36 CSA IR
COMLAB 20.10 -0.26 10.20 2.56 0.29 -2.58 0.50 -1.59 0.52 -1.89 0.88 -0.75 0.92 -0.70 0.02 -2.20 10.20 -1.96 0.23 -2.08
COMLAB 20.30 0.00 9.29 -0.02 0.34 -0.07 0.54 0.09 0.59 0.49 0.92 0.22 0.96 0.19 0.04 -0.26 10.80 -0.05 0.27 -0.13 CSA IR
COMLAB 21.72 1.87 10.22 2.62 0.39 2.43 0.55 0.51 0.61 1.16 0.94 0.71 1.02 1.51 0.06 1.68 11.78 3.00 0.30 1.34 CSA IR
COMLAB 15.15 -3.00 9.30 0.01 0.32 -1.08 0.39 -3.00 0.61 1.16 0.99 1.93 0.93 -0.48 0.04 -0.26 11.03 0.69 0.25 -1.11
COMLAB 19.90 -0.53 9.22 -0.22 0.34 -0.07 0.53 -0.33 0.54 -1.21 0.91 -0.02 0.91 -0.92 0.05 0.71 10.90 0.27 0.28 0.36 CSA IR
COMLAB 20.40 0.13 9.24 -0.16 0.34 -0.07 0.50 -1.59 0.57 -0.19 0.91 -0.02 0.95 -0.03 0.05 0.71 10.76 -0.17 0.26 -0.62 CSA IR
COMLAB 20.10 -0.26 9.22 -0.22 0.36 0.93 0.56 0.94 0.59 0.49 0.92 0.22 0.98 0.63 0.04 -0.26 10.80 -0.05 0.26 -0.62 CSA IR
COMLAB 20.20 -0.13 8.78 -1.47 0.34 -0.07 0.53 -0.33 0.59 0.49 0.91 -0.02 0.97 0.41 0.04 -0.26 10.50 -1.00 0.27 -0.13 CSA IR
COMLAB 20.40 0.13 9.31 0.03 0.31 -1.58 0.52 -0.75 0.55 -0.87 0.89 -0.51 0.91 -0.92 0.01 -3.00 11.00 0.59 0.24 -1.59 CSA IR
COMLAB 20.40 0.13 8.87 -1.22 0.34 -0.07 0.50 -1.59 0.53 -1.55 0.92 0.22 1.00 1.07 0.04 -0.26 11.35 1.71 0.27 -0.13 CSA IR
COMLAB 20.50 0.26 9.38 0.23 0.35 0.43 0.51 -1.17 0.53 -1.55 0.89 -0.51 0.93 -0.48 0.03 -1.23 10.95 0.43 0.25 -1.11 CSA IR
COMLAB 20.80 0.66 9.50 0.57 0.32 -1.08 0.52 -0.75 0.56 -0.53 0.88 -0.75 0.92 -0.70 0.04 -0.26 10.90 0.27 0.26 -0.62 CSA IR
COMLAB 20.64 0.45 9.45 0.43 0.37 1.43 0.57 1.36 0.61 1.16 0.94 0.71 1.01 1.29 0.04 -0.26 10.94 0.40 0.30 1.34 CSA IR
COMLAB 20.90 0.79 9.40 0.29 0.32 -1.08 0.51 -1.17 0.54 -1.21 0.89 -0.51 0.88 -1.58 0.04 -0.26 11.00 0.59 0.26 -0.62 CSA IR
COMLAB 20.30 0.00 8.96 -0.96 0.34 -0.07 0.52 -0.75 0.55 -0.87 0.88 -0.75 0.90 -1.14 nr nr 10.90 0.27 0.27 -0.13 CSA IR
COMLAB 20.40 0.13 9.19 -0.31 0.34 -0.07 0.54 0.09 0.58 0.15 0.88 -0.75 0.91 -0.92 0.04 -0.26 10.90 0.27 0.28 0.36 CSA IR
COMLAB 20.30 0.00 9.17 -0.36 0.33 -0.58 0.54 0.09 0.56 -0.53 0.87 -1.00 0.92 -0.70 nr nr 10.85 0.11 0.27 -0.13 CSA IR
COMLAB 24.22 3.00 10.12 2.34 0.36 0.93 0.94 3.00 0.96 3.00 0.91 -0.02 1.57 3.00 0.04 -0.26 12.33 3.00 0.24 -1.59 CSA IR
COMLAB 19.86 -0.58 8.88 -1.19 0.33 -0.58 0.54 0.09 0.56 -0.53 0.87 -1.00 0.92 -0.70 0.04 -0.26 10.42 -1.26 0.26 -0.62 CSA IR
COMLAB 20.00 -0.40 9.22 -0.22 0.37 1.43 0.59 2.20 0.63 1.84 1.00 2.17 1.02 1.51 0.04 -0.26 10.70 -0.37 0.28 0.36 CSA IR
COMLAB 20.30 0.00 9.03 -0.76 0.37 1.43 0.64 3.00 0.64 2.18 0.99 1.93 1.04 1.96 0.05 0.71 10.70 -0.37 0.30 1.34 CSA IR
COMLAB 20.50 0.26 9.35 0.15 0.37 1.43 0.53 -0.33 0.55 -0.87 0.87 -1.00 0.88 -1.58 0.08 3.00 10.82 0.02 0.26 -0.62 CSA IR
COMLAB 21.10 1.06 9.56 0.74 0.33 -0.58 0.54 0.09 0.57 -0.19 0.91 -0.02 0.97 0.41 0.04 -0.26 11.20 1.23 0.25 -1.11 CSA IR
COMLAB 20.95 0.86 9.31 0.03 0.32 -1.08 0.51 -1.17 0.55 -0.87 0.87 -1.00 0.93 -0.48 0.04 -0.26 10.90 0.27 0.26 -0.62 CSA IR
COMLAB 21.67 1.81 10.13 2.36 0.46 3.00 0.65 3.00 0.69 3.00 1.06 3.00 1.10 3.00 0.10 3.00 11.47 2.10 0.35 3.00 CSA IR
COMLAB 20.30 0.00 9.06 -0.68 0.32 -1.08 0.55 0.51 0.55 -0.87 0.91 -0.02 0.92 -0.70 0.04 -0.26 10.67 -0.46 0.25 -1.11 CSA IR
COMLAB 20.17 -0.17 9.27 -0.08 0.34 -0.07 0.53 -0.33 0.56 -0.53 0.90 -0.27 0.94 -0.25 0.04 -0.26 10.83 0.05 0.27 -0.13 CSA IR
COMLAB 19.75 -0.73 9.01 -0.82 0.33 -0.58 0.53 -0.33 0.59 0.49 0.90 -0.27 0.95 -0.03 0.03 -1.23 10.34 -1.52 0.26 -0.62 CSA,FUS IR,GRAV
COMLAB 19.22 -1.43 9.22 -0.22 0.33 -0.58 0.54 0.09 0.57 -0.19 0.97 1.44 1.00 1.07 0.02 -2.20 10.90 0.27 0.29 0.85 CSA IR
COMLAB 18.86 -1.90 8.82 -1.36 0.33 -0.58 0.54 0.09 0.61 1.16 0.91 -0.02 1.00 1.07 0.03 -1.23 10.30 -1.64 0.27 -0.13 CSA IR
COMLAB 18.95 -1.78 8.77 -1.50 0.35 0.43 0.52 -0.75 0.60 0.82 0.93 0.46 0.97 0.41 0.04 -0.26 10.40 -1.32 0.29 0.85 CSA IR
COMLAB 21.00 0.92 9.60 0.86 0.33 -0.58 0.53 -0.33 0.57 -0.19 0.85 -1.49 0.95 -0.03 0.02 -2.20 10.80 -0.05 0.26 -0.62 CSA IR
COMLAB 20.00 -0.40 9.29 -0.02 0.31 -1.58 0.53 -0.33 0.56 -0.53 0.86 -1.24 0.91 -0.92 0.03 -1.23 11.00 0.59 0.23 -2.08 CSA IR
COMLAB 19.99 -0.41 9.61 0.89 0.34 -0.07 0.52 -0.75 0.57 -0.19 0.89 -0.51 0.94 -0.25 0.05 0.71 11.35 1.71 0.27 -0.13 CSA IR
COMLAB 20.45 0.20 9.53 0.66 0.34 0.08 0.55 0.51 0.59 0.49 0.92 0.22 0.99 0.85 <0.05 bld 10.55 -0.84 0.27 -0.32 AR GRAV
COMLAB 19.54 -1.00 9.34 0.12 0.32 -1.08 0.50 -1.59 0.57 -0.19 0.92 0.22 0.96 0.19 0.04 -0.26 10.42 -1.26 0.26 -0.62 4A ES
COMLAB 19.51 -1.04 9.21 -0.25 0.37 1.43 0.57 1.36 0.61 1.16 0.93 0.46 0.96 0.19 0.09 3.00 10.70 -0.37 0.31 1.83 CSA IR
COMLAB 20.00 -0.40 9.22 -0.22 0.36 0.93 0.55 0.51 0.59 0.49 0.92 0.22 0.97 0.41 0.04 -0.26 10.70 -0.37 0.28 0.36 CSA IR
COMLAB 19.31 -1.31 8.97 -0.93 0.32 -1.08 0.53 -0.33 0.52 -1.89 0.89 -0.51 0.94 -0.25 0.04 -0.26 10.23 -1.87 0.27 -0.13 CSA IR
COMLAB 20.83 0.70 9.66 1.03 0.35 0.43 0.55 0.51 0.57 -0.19 0.92 0.22 0.96 0.19 0.04 -0.26 11.10 0.91 0.27 -0.13 CSA IR
COMLAB 20.40 0.13 9.77 1.34 0.37 1.43 0.57 1.36 0.60 0.82 0.93 0.46 0.99 0.85 0.05 0.71 11.00 0.59 0.30 1.34
COMLAB 19.66 -0.85 9.03 -0.76 0.35 0.43 0.55 0.51 0.60 0.82 0.93 0.46 1.02 1.51 0.04 -0.26 10.56 -0.81 0.29 0.85 CSA IR
COMLAB 20.73 0.57 9.37 0.20 0.33 -0.58 0.43 -3.00 0.54 -1.21 0.86 -1.24 0.92 -0.70 0.05 0.71 11.92 3.00 0.28 0.36 CSA IR
COMLAB 20.00 -0.40 9.03 -0.76 0.35 0.43 0.54 0.09 0.58 0.15 0.92 0.22 0.96 0.19 0.04 -0.26 10.93 0.37 0.27 -0.13 CSA IR
COMLAB 20.60 0.40 9.29 -0.02 0.36 0.93 0.55 0.51 0.59 0.49 0.92 0.22 0.96 0.19 0.06 1.68 10.80 -0.05 0.28 0.36 CSA IR
COMLAB 19.80 -0.66 9.08 -0.62 0.32 -1.08 0.50 -1.59 0.54 -1.21 0.87 -1.00 0.89 -1.36 0.04 -0.26 10.50 -1.00 0.25 -1.11 CSA IR
COMLAB 20.20 -0.13 9.31 0.03 0.33 -0.58 0.51 -1.17 0.58 0.15 0.87 -1.00 0.96 0.19 0.02 -2.20 11.00 0.59 0.26 -0.62 CSA IR
COMLAB 20.71 0.54 9.00 -0.85 0.33 -0.58 0.53 -0.33 0.57 -0.19 0.88 -0.75 0.92 -0.70 0.04 -0.26 10.90 0.27 0.26 -0.62 CSA IR
COMLAB 20.90 0.79 9.45 0.43 0.36 0.93 0.58 1.78 0.62 1.47 0.98 1.56 1.02 1.51 nr nr 10.90 0.27 0.29 0.70 CSA IR
COMLAB 20.20 -0.13 9.27 -0.08 0.35 0.53 0.56 1.06 0.59 0.35 0.94 0.68 0.98 0.67 0.05 0.42 11.00 0.59 0.29 0.70 CSA IR
COMLAB 21.10 1.06 9.59 0.83 0.31 -1.58 0.52 -0.75 0.57 -0.19 0.94 0.71 0.96 0.19 0.03 -1.23 11.00 0.59 0.26 -0.62 CSA IR
COMLAB 19.60 -0.92 9.05 -0.70 0.33 -0.63 0.52 -0.62 0.56 -0.50 0.91 0.03 0.87 -1.71 0.03 -1.43 11.20 1.23 0.24 -1.64 CSA IR
COMLAB 20.08 -0.29 9.29 -0.02 0.33 -0.58 0.56 0.94 0.60 0.82 0.96 1.20 0.95 -0.03 0.03 -1.23 10.76 -0.17 0.27 -0.13 CSA IR
COMLAB 20.70 0.53 9.25 -0.14 0.36 0.83 0.57 1.19 0.61 1.23 0.95 1.02 1.00 0.98 0.06 1.23 10.90 0.27 0.28 0.41 CSA IR
COMLAB 19.98 -0.43 9.07 -0.66 0.33 -0.43 0.53 -0.24 0.56 -0.47 0.89 -0.44 0.96 0.21 0.04 -0.46 10.67 -0.45 0.26 -0.52 CSA IR
COMLAB 20.60 0.40 9.29 -0.02 0.34 -0.02 0.54 -0.12 0.55 -0.77 0.89 -0.54 0.91 -0.90 0.07 2.55 11.00 0.59 0.27 -0.13 CSA IR
COMLAB 19.03 -1.68 9.09 -0.59 nr nr 0.69 3.00 nr nr 0.96 1.20 1.10 3.00 nr nr 10.66 -0.49 nr nr GRAV
COMLAB 19.75 -0.73 8.97 -0.93 0.39 2.43 0.58 1.78 0.61 1.16 0.94 0.71 0.97 0.41 0.08 3.00 10.39 -1.36 0.30 1.34 CSA IR
COMLAB 20.84 0.71 9.19 -0.31 0.35 0.43 0.54 0.09 0.58 0.15 0.92 0.22 0.97 0.41 0.04 -0.26 10.65 -0.52 0.27 -0.13 CSA IR
COMLAB 19.54 -1.00 8.98 -0.90 0.27 -3.00 0.52 -0.75 0.71 3.00 0.61 -3.00 0.88 -1.58 0.08 3.00 10.40 -1.32 0.56 3.00 AR,IH GRAV
COMLAB 19.50 -1.06 9.50 0.57 0.34 -0.07 0.55 0.51 0.59 0.49 0.92 0.22 0.97 0.41 0.03 -1.23 10.30 -1.64 0.26 -0.62
MINELAB 19.63 -0.88 8.85 -1.27 0.33 -0.58 0.53 -0.33 0.58 0.15 0.90 -0.27 0.88 -1.58 0.04 -0.26 10.91 0.31 0.27 -0.13 CSA IR
MINELAB ald ald 9.65 1.00 0.37 1.43 0.57 1.36 0.60 0.82 0.95 0.95 0.99 0.85 bld bld ald ald 0.31 1.83
MINELAB 19.29 -1.33 9.04 -0.73 0.41 3.00 0.68 3.00 0.67 3.00 1.11 3.00 0.96 0.19 0.05 0.71 10.76 -0.17 0.32 2.32 CSA IR
MINELAB 21.20 1.19 10.50 3.00 0.32 -1.08 0.52 -0.75 0.55 -0.87 0.90 -0.27 0.94 -0.25 0.04 -0.26 12.30 3.00 0.23 -2.08 CSA IR
MINELAB 17.51 -3.00 8.16 -3.00 0.32 -1.08 0.50 -1.59 0.53 -1.55 0.89 -0.51 0.88 -1.58 0.04 -0.26 9.65 -3.00 0.25 -1.11 CSA IR
MINELAB 19.70 -0.79 9.00 -0.85 0.33 -0.58 0.53 -0.33 0.56 -0.53 0.89 -0.51 0.94 -0.25 0.04 -0.26 10.60 -0.68 0.26 -0.62 CSA IR
MINELAB 21.75 1.91 10.03 2.08 0.29 -2.58 0.51 -1.17 0.56 -0.53 0.95 0.95 0.97 0.41 0.05 0.71 11.87 3.00 0.19 -3.00 CSA IR
MINELAB 21.20 1.19 10.10 2.28 0.34 0.13 0.52 -0.66 0.56 -0.70 0.96 1.12 1.01 1.29 0.08 3.00 10.60 -0.68 0.29 0.75 CSA IR
MINELAB 21.55 1.65 9.69 1.11 0.36 0.93 0.56 0.94 0.56 -0.53 0.82 -2.22 0.94 -0.25 0.10 3.00 10.82 0.02 0.30 1.34 CSA IR
MINELAB 21.71 1.86 9.87 1.62 0.37 1.43 0.56 1.02 0.58 0.01 0.94 0.78 0.97 0.34 0.09 3.00 11.78 3.00 0.32 2.12 CSA IR
MINELAB 20.74 0.58 9.53 0.66 0.33 -0.58 0.52 -0.75 0.55 -0.87 0.86 -1.24 0.89 -1.36 0.09 3.00 11.22 1.30 0.28 0.36 CSA IR
MINELAB 19.03 -1.68 9.01 -0.82 0.35 0.43 0.52 -0.75 0.59 0.49 0.86 -1.24 0.94 -0.25 0.04 -0.26 10.57 -0.78 0.28 0.36 CSA IR
MINELAB 20.49 0.25 9.01 -0.82 0.37 1.43 0.58 1.78 0.58 0.15 0.95 0.95 1.00 1.07 0.07 2.65 10.96 0.47 0.28 0.36 CSA IR
MINELAB 19.70 -0.79 8.79 -1.44 0.28 -3.00 0.42 -3.00 0.52 -1.89 0.93 0.46 0.91 -0.92 0.05 0.71 10.30 -1.64 0.25 -1.11 CSA IR
MINELAB 18.81 -1.97 8.42 -2.50 0.36 0.93 0.54 0.09 0.57 -0.19 0.89 -0.51 1.05 2.18 0.06 1.68 10.57 -0.78 0.33 2.81 3A ES
MINELAB 20.25 -0.07 9.37 0.20 <0.50 bld <0.50 bld <0.50 bld 0.77 -3.00 0.81 -3.00 <0.50 bld 10.80 -0.05 <0.50 bld FUS XRF
MINELAB 19.16 -1.50 8.83 -1.32 0.31 -1.38 0.51 -1.38 0.53 -1.72 0.84 -1.75 0.92 -0.72 0.04 -0.65 10.25 -1.80 0.25 -1.01
MINELAB 20.73 0.57 9.53 0.66 0.33 -0.58 0.62 3.00 0.65 2.52 1.08 3.00 1.15 3.00 <0.01 -3.00 11.32 1.62 0.25 -1.11 CSA IR
MINELAB 20.18 -0.16 9.70 1.14 0.32 -1.08 0.52 -0.75 0.54 -1.21 0.86 -1.24 0.92 -0.70 0.05 0.71 11.57 2.42 0.29 0.85 CSA IR
MINELAB 19.41 -1.18 9.30 0.01 0.36 0.93 0.56 0.94 0.59 0.49 0.92 0.22 0.95 -0.03 0.04 -0.26 10.54 -0.88 0.28 0.36 CSA IR
MINELAB 21.30 1.32 9.51 0.60 0.35 0.43 0.53 -0.33 0.58 0.15 0.95 0.95 1.01 1.29 0.04 -0.26 11.20 1.23 0.30 1.34 CSA IR
MINELAB 20.49 0.25 9.27 -0.08 0.34 -0.07 0.54 0.09 0.58 0.15 1.00 2.17 1.03 1.74 0.06 1.68 10.80 -0.05 0.27 -0.13 CSA IR
MINELAB 21.54 1.64 9.82 1.48 0.30 -2.08 0.55 0.51 0.58 0.15 0.92 0.22 0.96 0.19 <0.09 bld 11.37 1.78 0.26 -0.62 CSA IR
MINELAB 22.20 2.51 9.39 0.26 0.35 0.43 0.59 2.20 0.63 1.84 0.96 1.20 1.00 1.07 0.09 3.00 10.80 -0.05 0.32 2.32 CSA IR
MINELAB 20.40 0.13 8.75 -1.56 0.38 1.93 0.49 -2.01 0.52 -1.89 0.84 -1.73 0.88 -1.58 <0.01 -3.00 10.60 -0.68 0.29 0.85 CSA IR
MINELAB 19.19 -1.47 8.92 -1.07 0.36 0.93 0.55 0.51 0.61 1.16 0.97 1.44 0.99 0.85 0.04 -0.26 10.34 -1.52 0.28 0.36 CSA IR
MINELAB 21.39 1.44 9.68 1.09 0.35 0.43 0.56 0.94 0.61 1.16 0.96 1.20 0.98 0.63 0.04 -0.26 11.35 1.71 0.28 0.36 CSA IR
MINELAB 19.26 -1.38 9.21 -0.26 0.38 1.78 0.60 2.66 0.64 2.15 0.98 1.76 1.04 2.05 0.05 0.61 10.87 0.18 0.30 1.44 CSA IR
MINELAB 20.37 0.09 9.20 -0.28 0.33 -0.58 0.54 0.09 0.58 0.15 0.93 0.46 1.00 1.07 0.05 0.71 10.38 -1.39 0.26 -0.62 CSA IR
MINELAB 21.90 2.11 9.18 -0.34 0.33 -0.58 0.52 -0.75 0.56 -0.53 0.83 -1.97 0.83 -2.69 <0.10 bld 11.10 0.91 0.29 0.85 CSA,FUS IR
MINELAB 13.10 -3.00 5.97 -3.00 0.24 -3.00 0.37 -3.00 0.39 -3.00 0.58 -3.00 0.64 -3.00 0.06 1.68 6.93 -3.00 0.20 -3.00 CSA IR
MINELAB 21.39 1.44 8.89 -1.16 0.35 0.43 0.53 -0.33 0.57 -0.19 0.90 -0.27 0.91 -0.92 0.04 -0.26 10.43 -1.23 0.27 -0.13 CSA IR
MINELAB 21.05 0.99 9.76 1.31 0.35 0.43 0.52 -0.75 0.57 -0.19 0.87 -1.00 0.91 -0.92 0.06 1.68 11.29 1.52 0.29 0.85 CSA IR
MINELAB 19.26 -1.37 8.75 -1.56 0.34 -0.07 0.54 0.09 0.55 -0.87 0.87 -1.00 0.91 -0.92 0.04 -0.07 10.39 -1.36 0.27 -0.13 CSA IR
MINELAB 20.01 -0.38 9.38 0.23 0.35 0.43 0.50 -1.59 0.60 0.82 0.78 -3.00 0.80 -3.00 0.03 -1.23 11.00 0.59 0.26 -0.62 CSA IR
MINELAB 21.00 0.92 9.97 1.90 0.43 3.00 0.63 3.00 0.63 1.84 1.06 3.00 1.10 3.00 0.10 3.00 11.55 2.35 0.36 3.00 CSA IR
MINELAB 18.85 -1.91 9.40 0.28 0.34 0.13 0.54 0.09 0.61 1.16 0.98 1.68 1.00 1.14 10.89 3.00 <0.005 -3.00 0.25 -1.11 CSA IR
MINELAB 20.56 0.34 9.13 -0.48 0.32 -1.08 0.52 -0.75 0.54 -1.21 0.86 -1.24 0.95 -0.03 0.05 0.71 10.73 -0.27 0.26 -0.62 CSA IR
MINELAB 20.40 0.13 9.41 0.31 0.36 1.13 0.58 1.61 0.58 0.21 0.92 0.32 0.96 0.12 0.06 1.68 10.80 -0.05 0.28 0.31 CSA IR
MINELAB 20.55 0.33 9.31 0.03 0.35 0.43 0.55 0.51 0.55 -0.87 0.84 -1.73 0.91 -0.92 0.05 0.71 10.75 -0.21 0.24 -1.59 CSA IR
MINELAB 20.19 -0.15 9.17 -0.36 0.36 0.93 0.57 1.36 0.59 0.49 0.90 -0.27 0.90 -1.14 0.04 -0.26 11.07 0.82 0.29 0.85 CSA IR
MINELAB 20.01 -0.38 9.13 -0.48 0.36 0.98 0.58 1.95 0.62 1.61 0.97 1.51 1.01 1.25 0.05 0.61 10.72 -0.30 0.28 0.31 CSA IR
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 51
Sulphur Assay - Mean of Absolute Standardized Values - April 2020 Sulphur Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
COMLAB
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-3 -2 -1 0 1 2 30 1 2
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Zarazma Minerals Studies Company ReportPage 52
Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2020
Standard Reference GS320-1 GS320-2 GS320-3 GS320-4 GS320-5 GS320-6 GS320-7 GS320-8 GS320-9 GS320-10
MEAN (%) 0.62 0.55 0.40 0.06 0.07 0.06 0.07 0.05 1.35 0.59
STDEV (%) 0.03 0.03 0.02 0.02 0.01 0.02 0.02 0.02 0.06 0.03
95% CI (%) 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.01 0.01
95% CI (rel %) 1.23% 1.37% 1.40% 6.07% 5.11% 6.36% 5.65% 6.59% 0.98% 1.14% Carbon Assay - Mean of Absolute Standardized Values - April 2020MIN (%) 0.54 0.47 0.33 0.03 0.03 0.02 0.03 0.02 1.20 0.53
MEDIAN (%) 0.62 0.55 0.40 0.06 0.07 0.06 0.07 0.05 1.35 0.59
MAX (%) 0.70 0.64 0.46 0.10 0.10 0.09 0.12 0.09 1.50 0.66
IQR (%) 0.04 0.04 0.03 0.02 0.02 0.02 0.02 0.01 0.08 0.04
COUNT 73 76 76 69 70 71 73 69 75 75
Standard Reference GS320-1 GS320-2 GS320-3 GS320-4 GS320-5 GS320-6 GS320-7 GS320-8 GS320-9 GS320-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 0.60 -0.54 0.54 -0.40 0.38 -0.72 0.04 -1.40 0.05 -1.15 0.04 -1.16 0.05 -1.31 0.03 -1.62 1.32 -0.59 0.58 -0.27 CSA IR
COMLAB 0.61 -0.24 0.55 -0.10 0.40 0.09 0.06 -0.14 0.07 0.24 0.06 0.09 0.08 0.35 0.05 -0.29 1.33 -0.42 0.58 -0.27 CSA IR
COMLAB 0.58 -1.15 0.52 -0.99 0.38 -0.72 0.06 -0.14 0.06 -0.45 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.29 -1.11 0.56 -0.95 CSA IR
COMLAB 0.62 0.07 0.53 -0.70 0.37 -1.13 0.08 1.12 0.07 0.24 0.06 0.09 0.08 0.35 0.05 -0.29 1.20 -2.66 0.53 -1.97
COMLAB 0.62 0.07 0.59 1.09 0.42 0.90 0.07 0.49 0.09 1.63 0.07 0.72 0.09 0.90 0.07 1.03 1.38 0.44 0.60 0.41 CSA IR
COMLAB 0.63 0.37 0.57 0.50 0.41 0.50 0.09 1.74 0.08 0.93 0.08 1.35 0.09 0.90 0.08 1.69 1.34 -0.25 0.59 0.07 CSA IR
COMLAB 0.61 -0.24 0.59 1.09 0.43 1.31 0.05 -0.77 0.06 -0.45 0.05 -0.54 0.06 -0.76 0.05 -0.29 1.35 -0.08 0.61 0.75 CSA IR
COMLAB 0.70 2.49 0.72 3.00 0.45 2.13 0.06 -0.14 0.07 0.24 0.06 0.09 0.08 0.35 0.06 0.37 1.27 -1.46 0.68 3.00 CSA IR
COMLAB 0.61 -0.24 0.53 -0.70 0.39 -0.32 0.06 -0.14 0.07 0.24 0.06 0.09 0.07 -0.21 0.05 -0.29 1.29 -1.11 0.58 -0.27 CSA IR
COMLAB 0.60 -0.54 0.54 -0.40 0.40 0.09 0.06 -0.14 0.08 0.93 0.04 -1.16 0.07 -0.21 0.05 -0.29 1.34 -0.25 0.60 0.41 CSA IR
COMLAB 0.81 3.00 0.66 3.00 0.48 3.00 0.09 1.74 0.12 3.00 0.09 1.98 0.12 2.57 0.09 2.35 1.38 0.44 0.66 2.45 CSA IR
COMLAB 0.64 0.67 0.58 0.79 0.39 -0.32 0.06 -0.14 0.06 -0.45 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.40 0.78 0.59 0.07 CSA IR
COMLAB 0.62 0.07 0.56 0.20 0.41 0.50 0.06 -0.14 0.07 0.24 0.06 0.09 0.07 -0.21 0.06 0.37 1.39 0.61 0.60 0.41 CSA IR
COMLAB 0.60 -0.54 0.55 -0.10 0.39 -0.32 nr nr nr nr nr nr nr nr nr nr 1.36 0.10 0.59 0.07 CSA IR
COMLAB 0.59 -0.84 0.53 -0.70 0.38 -0.72 nr nr nr nr nr nr nr nr nr nr 1.34 -0.25 0.56 -0.95 CSA IR
COMLAB 0.69 2.19 0.57 0.50 0.40 0.09 0.05 -0.77 0.05 -1.15 0.05 -0.54 0.10 1.46 0.04 -0.96 1.38 0.44 0.59 0.07 CSA IR
COMLAB 0.62 0.07 0.56 0.20 0.40 0.09 0.05 -0.77 0.06 -0.45 0.05 -0.54 0.11 2.01 0.05 -0.29 1.38 0.44 0.59 0.07 CSA IR
COMLAB 0.70 2.49 0.60 1.39 0.42 0.90 0.06 -0.14 0.06 -0.45 0.06 0.09 0.06 -0.76 0.06 0.37 1.50 2.51 0.60 0.41 CSA IR
COMLAB 0.62 0.07 0.54 -0.40 0.38 -0.72 0.06 -0.14 0.08 0.93 0.06 0.09 0.07 -0.21 0.05 -0.29 1.34 -0.25 0.57 -0.61 CSA IR
COMLAB 0.61 -0.24 0.56 0.20 0.42 0.90 0.08 1.12 0.09 1.63 0.08 1.35 0.09 0.90 0.09 2.35 1.37 0.27 0.60 0.41 CSA IR
COMLAB 0.61 -0.24 0.54 -0.40 0.40 0.09 0.07 0.49 0.07 0.24 0.06 0.09 0.08 0.35 0.06 0.37 1.32 -0.59 0.57 -0.61 CSA IR
COMLAB 0.61 -0.24 0.53 -0.70 0.36 -1.54 <0.15 bld <0.15 bld <0.15 bld <0.15 bld <0.15 bld 1.29 -1.11 0.54 -1.63 CSA IR
COMLAB 0.61 -0.24 0.56 0.20 0.40 0.09 0.06 -0.14 0.07 0.24 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.38 0.44 0.60 0.41 CSA IR
COMLAB 0.63 0.37 0.55 -0.10 0.40 0.09 0.06 -0.14 0.06 -0.45 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.34 -0.25 0.60 0.41 CSA IR
COMLAB 0.56 -1.75 0.51 -1.29 0.37 -1.13 0.09 1.74 0.09 1.63 0.09 1.98 0.09 0.90 0.08 1.69 1.33 -0.42 0.53 -1.97 CSA IR
COMLAB 0.68 1.88 0.59 1.09 0.40 0.09 0.06 -0.14 0.06 -0.45 0.06 0.09 0.08 0.35 0.05 -0.29 1.41 0.96 0.61 0.75 CSA IR
COMLAB 0.60 -0.54 0.56 0.20 0.40 0.09 0.05 -0.77 0.05 -1.15 0.05 -0.54 0.06 -0.76 0.04 -0.96 1.29 -1.11 0.61 0.75 CSA IR
COMLAB 0.60 -0.54 0.53 -0.70 0.37 -1.13 0.10 2.37 0.09 1.63 0.08 1.35 0.09 0.90 0.08 1.69 1.27 -1.46 0.58 -0.27 CSA IR
COMLAB 0.55 -2.05 0.47 -2.48 0.36 -1.54 0.08 1.12 0.09 1.63 0.08 1.35 0.10 1.46 0.07 1.03 1.05 -3.00 0.55 -1.29 CSA IR
COMLAB 0.58 -1.15 0.54 -0.40 0.39 -0.32 0.07 0.49 0.07 0.24 0.07 0.72 0.08 0.35 0.06 0.37 1.25 -1.80 0.57 -0.61 CSA IR
COMLAB 0.63 0.37 0.55 -0.10 0.39 -0.32 0.07 0.49 0.07 0.24 0.06 0.09 0.08 0.35 <0.05 bld 1.34 -0.25 0.59 0.07 CSA IR
COMLAB 0.67 1.58 0.59 1.09 0.43 1.31 0.07 0.49 0.07 0.24 0.07 0.72 0.08 0.35 0.07 1.03 1.40 0.78 0.63 1.43 CSA IR
COMLAB 0.59 -0.84 0.49 -1.89 0.38 -0.72 0.03 -2.03 0.03 -2.53 0.03 -1.79 0.04 -1.87 0.03 -1.62 1.28 -1.28 0.56 -0.95 CSA IR
COMLAB 0.62 0.07 0.55 -0.10 0.39 -0.32 0.06 -0.14 0.06 -0.45 0.06 0.09 0.07 -0.21 0.05 -0.29 1.35 -0.08 0.59 0.07 CSA IR
COMLAB 0.61 -0.24 0.51 -1.29 0.33 -2.76 0.05 -0.77 0.02 -3.00 0.03 -1.79 0.03 -2.42 0.02 -2.28 1.35 -0.08 0.57 -0.61
COMLAB 0.63 0.37 0.58 0.79 0.39 -0.32 0.03 -2.03 0.04 -2.12 0.02 -2.36 0.04 -2.04 0.03 -1.42 1.40 0.78 0.55 -1.29 CSA IR
COMLAB 0.64 0.67 0.57 0.50 0.42 0.90 0.09 1.74 0.09 1.63 0.09 1.98 0.11 2.01 0.08 1.69 1.30 -0.94 0.58 -0.27 CSA IR
COMLAB 0.66 1.28 0.59 1.09 0.42 0.90 0.07 0.49 0.07 0.24 0.06 0.09 0.08 0.35 0.06 0.37 1.40 0.78 0.61 0.75 CSA IR
COMLAB 0.55 -2.05 0.48 -2.19 0.38 -0.72 0.04 -1.40 0.06 -0.45 0.04 -1.16 0.06 -0.76 0.04 -0.96 1.33 -0.42 0.56 -0.95 CSA IR
COMLAB 0.62 0.07 0.55 -0.10 0.38 -0.72 0.04 -1.40 0.05 -1.15 0.04 -1.16 0.06 -0.76 0.03 -1.62 1.40 0.78 0.58 -0.27 CSA IR
COMLAB 0.59 -0.84 0.55 -0.10 0.40 0.09 0.06 -0.14 0.07 0.24 0.07 0.72 0.07 -0.21 0.05 -0.29 1.31 -0.77 0.58 -0.27 CSA IR
COMLAB 0.61 -0.24 0.55 -0.10 0.41 0.50 0.06 -0.14 0.08 0.93 0.07 0.72 0.07 -0.21 0.07 1.03 1.33 -0.42 0.58 -0.27 CSA IR
COMLAB 0.65 1.03 0.59 1.21 0.43 1.43 0.06 -0.46 0.06 -0.18 0.05 -0.35 0.07 -0.37 0.05 -0.03 1.43 1.30 0.63 1.49 CSA IR
COMLAB 0.60 -0.54 0.60 1.39 0.40 0.09 0.09 1.68 0.08 0.80 0.07 0.91 0.09 1.12 0.06 0.43 1.40 0.78 0.60 0.41 CSA IR
COMLAB 0.63 0.22 0.57 0.35 0.40 0.05 0.07 0.61 0.08 1.00 0.07 0.60 0.08 0.51 0.07 0.83 1.35 -0.08 0.59 -0.10 CSA IR
COMLAB 0.65 0.97 0.59 1.09 0.41 0.50 0.04 -1.40 0.05 -1.15 0.05 -0.54 0.06 -0.76 0.04 -0.96 1.41 0.96 0.60 0.41 CSA IR
COMLAB 0.59 -0.87 0.54 -0.40 0.39 -0.48 0.06 -0.04 0.06 -0.43 0.05 -0.42 0.07 -0.34 0.06 0.18 1.35 -0.08 0.58 -0.21 CSA IR
COMLAB 0.61 -0.21 0.55 -0.22 0.38 -0.81 0.05 -0.71 0.06 -0.31 0.04 -0.91 0.06 -0.65 0.04 -0.69 1.36 0.04 0.57 -0.51 CSA IR
COMLAB 0.65 0.97 0.57 0.50 0.44 1.72 0.10 2.37 0.11 3.00 0.11 3.00 0.13 3.00 0.11 3.00 1.32 -0.59 0.61 0.75 CSA IR
COMLAB 0.65 0.97 0.56 0.20 0.40 0.09 0.05 -0.77 0.06 -0.45 0.05 -0.54 0.06 -0.76 0.04 -0.96 1.37 0.27 0.59 0.07 CSA IR
COMLAB 0.62 0.07 0.53 -0.70 0.36 -1.54 <0.10 bld <0.10 bld <0.10 bld <0.10 bld <0.10 bld 1.41 0.96 0.55 -1.29
MINELAB 0.65 0.97 0.58 0.79 0.42 0.90 0.05 -0.77 0.06 -0.45 0.05 -0.54 0.06 -0.76 0.05 -0.29 1.35 -0.08 0.61 0.75 CSA IR
MINELAB 0.54 -2.36 0.48 -2.19 0.39 -0.32 0.07 0.49 0.07 0.24 0.06 0.09 0.07 -0.21 0.06 0.37 1.02 -3.00 0.53 -1.97 CSA IR
MINELAB 0.73 3.00 0.59 1.09 0.41 0.50 0.10 2.37 0.15 3.00 0.08 1.35 0.16 3.00 0.15 3.00 1.47 1.99 0.62 1.09 CSA IR
MINELAB 0.61 -0.24 0.55 -0.10 0.40 0.09 0.07 0.49 0.06 -0.45 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.34 -0.25 0.59 0.07 CSA IR
MINELAB 0.62 0.07 0.55 -0.10 0.40 0.09 0.06 -0.14 0.07 0.24 0.05 -0.54 0.07 -0.21 0.05 -0.29 1.34 -0.25 0.57 -0.61 CSA IR
MINELAB 0.80 3.00 0.78 3.00 0.58 3.00 0.07 0.49 0.06 -0.45 0.05 -0.54 0.07 -0.21 0.07 1.03 1.50 2.51 1.01 3.00 CSA IR
MINELAB 0.58 -1.30 0.52 -1.08 0.37 -1.29 0.05 -0.77 0.06 -0.73 0.05 -0.72 0.06 -0.82 0.04 -0.69 1.29 -1.20 0.55 -1.16 CSA IR
MINELAB 0.57 -1.45 0.50 -1.59 0.35 -1.95 0.05 -0.77 0.04 -1.84 0.03 -1.79 0.05 -1.31 0.03 -1.62 1.27 -1.46 0.54 -1.63 CSA IR
MINELAB 0.57 -1.51 0.50 -1.56 0.36 -1.62 0.06 -0.14 0.06 -0.80 0.05 -0.60 0.06 -0.65 0.06 0.24 1.27 -1.47 0.54 -1.74 CSA IR
MINELAB 1.52 3.00 0.64 2.58 0.46 2.53 0.67 3.00 0.23 3.00 0.22 3.00 0.22 3.00 0.22 3.00 0.22 -3.00 0.22 -3.00 CSA IR
MINELAB 0.64 0.67 0.56 0.20 0.41 0.50 0.07 0.49 0.08 0.93 0.07 0.72 0.10 1.46 0.07 1.03 1.41 0.96 0.60 0.41 CSA IR
MINELAB 0.60 -0.54 0.57 0.50 0.43 1.31 0.08 1.12 0.08 0.93 0.09 1.98 0.09 0.90 0.08 1.69 1.29 -1.11 0.60 0.41 CSA IR
MINELAB 0.59 -0.84 0.54 -0.40 0.39 -0.32 <0.05 bld 0.05 -1.15 <0.05 bld 0.05 -1.31 0.05 -0.29 1.32 -0.59 0.58 -0.27 CSA IR
MINELAB 0.66 1.31 0.61 1.63 0.42 0.78 0.05 -0.84 0.05 -1.01 0.04 -1.10 0.06 -0.82 0.04 -0.96 1.43 1.37 0.64 1.70
MINELAB 0.62 0.07 0.55 -0.10 0.42 0.90 <0.09 bld 0.09 1.63 <0.09 bld 0.09 0.90 <0.09 bld 1.29 -1.11 0.60 0.41 CSA IR
MINELAB 0.65 0.97 0.58 0.79 0.46 2.53 0.11 3.00 0.10 2.32 0.09 1.98 0.11 2.01 0.10 3.00 1.39 0.61 0.63 1.43 CSA IR
MINELAB 0.60 -0.54 0.50 -1.59 0.37 -1.13 0.03 -2.03 0.07 0.24 0.04 -1.16 0.06 -0.76 0.03 -1.62 1.42 1.13 0.61 0.75 CSA IR
MINELAB 0.76 3.00 0.62 1.99 0.48 3.00 0.65 3.00 0.08 0.93 0.07 0.72 0.09 0.90 0.06 0.37 1.41 0.96 0.68 3.00 CSA IR
MINELAB 0.63 0.34 0.57 0.50 0.40 0.05 0.05 -0.77 0.05 -0.87 0.05 -0.60 0.06 -0.98 0.05 -0.56 1.37 0.28 0.61 0.88 CSA IR
MINELAB 0.65 0.97 0.56 0.20 0.39 -0.32 0.07 0.49 0.07 0.24 0.06 0.09 0.07 -0.21 0.05 -0.29 1.42 1.13 0.57 -0.61 CSA IR
MINELAB 0.63 0.37 0.58 0.79 0.41 0.50 <0.10 bld <0.10 bld <0.10 bld <0.10 bld <0.10 bld 1.36 0.10 0.62 1.09 CSA,FUS IR
MINELAB 0.66 1.28 0.60 1.39 0.44 1.72 0.08 1.12 0.09 1.63 0.08 1.35 0.10 1.46 0.08 1.69 1.38 0.44 0.64 1.77 CSA IR
MINELAB 0.66 1.28 0.59 1.09 0.43 1.31 0.07 0.49 0.06 -0.45 0.07 0.72 0.07 -0.21 0.05 -0.29 1.44 1.47 0.63 1.43 CSA IR
MINELAB 0.64 0.67 0.54 -0.40 0.42 0.90 0.06 -0.14 0.06 -0.45 0.06 0.09 0.06 -0.76 0.06 0.37 1.34 -0.25 0.66 2.45 CSA IR
MINELAB 0.51 -3.00 0.50 -1.59 0.36 -1.54 0.05 -0.96 0.05 -1.22 0.04 -1.16 0.05 -1.15 0.04 -0.89 1.24 -1.97 0.54 -1.63 CSA IR
MINELAB 0.61 -0.24 0.55 -0.10 0.39 -0.32 0.04 -1.40 0.04 -1.84 0.03 -1.79 0.05 -1.31 0.04 -0.96 1.38 0.44 0.59 0.07 CSA IR
MINELAB 0.87 3.00 0.78 3.00 0.54 3.00 0.07 0.49 0.07 0.24 0.07 0.41 0.08 0.35 0.07 0.70 1.84 3.00 0.85 3.00 CSA IR
MINELAB 0.60 -0.54 0.55 -0.10 0.41 0.50 0.11 3.00 0.12 3.00 0.11 3.00 0.11 1.79 1.38 3.00 0.11 -3.00 0.62 1.09 CSA IR
MINELAB 0.58 -1.15 0.52 -0.99 0.38 -0.72 0.07 0.49 0.08 0.93 0.07 0.72 0.08 0.35 0.06 0.37 1.36 0.10 0.56 -0.95 CSA IR
MINELAB 0.62 0.07 0.56 0.20 0.40 0.09 0.05 -0.77 0.06 -0.45 0.05 -0.54 0.06 -0.76 0.05 -0.29 1.42 1.13 0.62 1.09 CSA IR
MINELAB 0.61 -0.18 0.56 0.26 0.40 -0.07 0.07 0.61 0.07 0.24 0.06 0.22 0.08 0.13 0.06 0.17 1.33 -0.42 0.60 0.34 CSA IR
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Zarazma Minerals Studies Company Report Page 53
Carbon Assay - Mean of Absolute Standardized Values - April 2020 Carbon Assay - Mean of Standardized Values - April 2020
Standard Deviations Standard Deviations
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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MINELAB
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MINELAB
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MINELAB
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MINELAB
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MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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MINELAB
MINELAB
MINELAB
Zarazma Minerals Studies Company ReportPage 54
BV ONTARIO - NEUTRON ACTIVATION ANALYSIS REPORT
NAA Results - Gold and Base Metals
G320-1 G320-2 G320-3 G320-4 G320-5 G320-6 G320-7 G320-8 G320-9 G320-10 GLG320-1 GLG320-2 GLG320-3 GLG320-4 GLG320-5 GBM320-1 GBM320-2 GBM320-3 GBM320-4 GBM320-5 GBM320-6 GBM320-7 GBM320-8 GBM320-9 GBM320-10 GBM320-11 GBM320-12 GBM320-13 GBM320-14 GBM320-15 GBM320-16
Sb ppm 8 0.6 2.1 <0.2 <0.2 <0.2 <0.2 <0.2 0.9 <0.2 <0.1 0.8 0.7 <0.2 0.8 58.1 110 553 10.8 <0.2 <0.2 2.2 0.6 31.1 29.4 <0.8 0.5 524 2.2 9.9 0.3
As ppm 10.6 14.2 135 5.6 <0.5 <0.5 0.6 <0.5 2.6 <0.5 <0.5 <0.8 <0.5 <0.5 <0.5 700 46 331 33 1.3 1.7 1.2 1.3 460 146 1520 664 63 104 64.1 7
Ba ppm 373 951 255 219 421 365 423 359 373 316 431 440 349 211 386 1390 1920 6040 1510 669 506 649 668 310 517 348 466 <100 <100 <100 <100
Br ppm <2 3 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 3 5 3 3 <2 <2 <2 <2 4 <2 7 <2
Cd ppm <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 838 82 857 <10
Ce ppm 15 104 38 35 43 42 43 43 40 37 38 45 40 45 43 <5 5 9 <5 44 60 59 61 45 49 65 87 22 5 34 13
Cs ppm <2 <2 2 3 2 <2 <2 <2 <2 <2 <2 2 <2 <2 3 <2 <2 <2 <2 3 <2 3 <2 5 <2 3 2 5 <2 9 19
Cr ppm 68 116 5270 2970 102 99.8 101 100 105 102 108 67 88 24 112 38 <20 1440 2030 21 24 25 28 662 330 126 146 104 18 38 146
Co ppm 6 10 55 43 23 23 23 22 25 24 23 24 35 41 43 7.3 4.1 60 54 58 38 75 32 59 47 554 304 80 309 7 58
Eu ppm 0.1 0.9 0.6 1.3 1.2 1.3 0.9 1 1.1 1 1.1 1 1.4 2.1 1.3 <0.5 <0.5 <0.5 <0.5 <0.5 0.7 0.6 0.6 1 1.3 0.8 0.9 1.2 <0.5 4.7 0.8
Au ppb 55236 1358 1066 195 1190 2589 6463 12763 2095 673 353 71 56 <2 54 262 3850 14.6 22 16.1 16.7 40.6 52.9 3450 2880 3460 13500 595 186 561 820
Hf ppm 8 11 5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 6 <5 <5 8 <5 <5 <5 <5 <5 <5 6 5 6 9 <5 <5 <5 <5
Ir ppb <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50
Fe % 1.9 11.9 7.4 7.3 5.5 5.5 5.4 5.3 5.4 5.3 5.4 6.1 8.8 10.7 5.9 43.6 1 5.1 4.5 4.3 4.3 4.8 4.1 7.7 6.8 20.7 11.5 3.8 23.5 1.6 4.4
La ppm 9 43 17 15 20 20 20 20 19 18 18 22 17 18 20 3 3 3 <2 23 34 32 33 19 24 30 39 6 4 16 5
Lu ppm <0.2 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.6 0.4 <0.2 <0.2 <0.2 <0.2 0.2 0.2 <0.2 <0.2 0.4 0.4 0.4 0.5 <0.2 <0.2 <0.2 0.2
Mo ppm 419 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 25 42 88 76 <10 12 <10 <10 <10 <10 13 <10
Ni ppm <20 <20 578 266 28 32 27 29 25 30 25 28 40 45 56 28 <20 860 740 20 22 20 20 270 580 247 143 64 505 44 40000
Rb ppm 19 46 96 78 89 100 93 83 97 75 91 107 69 55 112 <20 <20 <20 <20 107 53 60 54 161 110 55 129 29 <20 49 674
Sm ppm 1.6 5.2 3.5 4.7 4.8 4.8 4.8 4.7 4.6 4.5 4.6 4.8 5.6 6.7 4.6 0.6 0.3 0.7 0.2 2.7 3.1 3.1 3 4.6 5 5.4 6.9 1.5 0.8 3.3 2.7
Sc ppm 3.6 14.3 12 22 18.6 18.4 18.5 18.1 18.8 18.5 18.8 19.9 27.4 31.3 19.8 4.1 2.2 9.4 3.6 4.2 4.9 4.5 4.7 19.5 17.9 7.5 8.9 5.5 2.2 6 16.1
Se ppm <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 567 <10 <10
Ag ppm 13 <5 <5 <5 <5 <5 <5 9 7 <5 <5 <5 <5 <5 <5 <5 27 11 <5 <5 <5 <5 <5 7 6.7 6 8.6 48 11 62 5
Na % 0.314 0.936 1.71 2.16 2.38 2.36 2.37 2.31 2.36 2.36 2.43 2.5 2.27 2.11 2.45 0.0645 0.112 0.0497 0.0471 2.53 3.4 2.63 2.7 1.56 2.02 0.482 0.433 0.113 0.0526 0.0889 1.73
Ta ppm <2 <2 <2 <2 2 2 2 <2 2 <2 2 <2 <2 <2 2 <2 <2 <2 <2 2 2 2 <2 <2 <2 <2 <2 <2 <2 <2 <2
Te ppm 51 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 67 <20 <20
Tb ppm <1 1 <1 <1 <1 <1 1 1 1 1 <1 1 1 1 1 <1 <1 <1 <1 <1 1 <1 <1 1 1 <1 1 <1 1 <1 <1
Th ppm 2.5 75.8 11.1 7.9 14.2 14.1 14.7 13.7 12.4 11.9 12 14.5 7.7 5.6 13.3 1.9 1.5 <0.5 <0.5 8.7 9 9.7 10.1 9.2 14.5 18.6 20 2.1 0.9 6.2 0.8
Sn ppm <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200
W ppm 1520 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 7 20 6 40 6 20 22 13 <5 <5 <5
U ppm <2 9 6 5 7 7 7 7 7 7 7 8 4 3 6 2 2 <1 <1 3 5 4 5 3 6 6 5 <2 1 5 <1
Yb ppm 0.5 1.6 2.2 2.9 2.9 2.8 3 2.8 2.8 2.8 2.7 2.9 3.3 4.2 2.7 <0.5 <0.5 <0.5 <0.5 1.1 1.5 1 1 2.8 2.3 2.9 3.4 <0.5 <0.5 1.3 1.5
Zn ppm 208 <200 572 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 520 <200 270 <200 <200 <200 <200 <200 600 1150 <200 <200 192000 23000 183000 <200
Zr ppm <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500
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International Laboratory Round RobinApril 2020
SUMMARY REPORT OF INDIVIDUAL LABORATORY PERFORMANCE
Zarazma Minerals Studies Company
GOLD SAMPLES
Analysis Samples Sent Reported Number of Outliers
Fire Assay Yes (10) Yes 0
Aqua Regia Yes (10) No -
Low Level Yes (5) Yes 0
Au & Ag IN CARBON SAMPLES
The laboratory were not sent any samples for Au & Ag in carbon analysis.
Analysis Reported Number of Outliers
Gold - -
Silver - -
BASE METAL SAMPLES
10 Base Metal samples were sent to the laboratory for analysis by Total and / or Partial methods.
Total Digest Partial Digest
Analysis Reported Number of Outliers Reported Number of Outliers
Silver Yes 0 No -
Copper Yes 2 No -
Lead Yes 0 No -
Zinc Yes 1 No -
Nickel Yes 1 No -
Arsenic No - Yes 0
Cobalt Yes 0 No -
ORE GRADE BASE METAL SAMPLES
6 Ore Grade Base Metal samples were sent to the laboratory for analysis. Charts
Analysis Reported Number of Outliers
Copper Yes 0
Lead Yes 0
Zinc Yes 0
Nickel Yes 0
Silver Yes 0
Sulphur Yes 0
SULPHUR SAMPLESThe laboratory were not sent any Sulphur samples for analysis.
Analysis Reported Number of Outliers
Sulphur - -
Carbon - -
ERROR GRAPHS
FURTHER INFORMATION
Lab Abbreviation - ZARAZMA TEHRAN Page 56
To discuss this report, please contact us on +618 9314 2566, or [email protected]
The samples analysed in this survey are available for purchase. Please contact us or visit www.geostats.com.au for a
complete listing of available materials.
Geostats Pty LtdSummary Report
0 1 2
Aqua Regia
Low Level Gold
BM-Silver (Total)
BM-Copper (Total)
BM-Lead (Total)
BM-Zinc (Total)
BM-Nickel (Total)
BM-Arsenic (Partial)
BM-Cobalt (Total)
OGBM-Copper
OGBM-Lead
OGBM-Zinc
OGBM-Nickel
OGBM-Silver
OGBM-Sulphur
Standard Deviations
Mean of Absolute Standardized Values April 2020 October 2019
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-3 -2 -1 0 1 2 3
Aqua Regia
Low Level Gold
BM-Silver (Total)
BM-Copper (Total)
BM-Lead (Total)
BM-Zinc (Total)
BM-Nickel (Total)
BM-Arsenic (Partial)
BM-Cobalt (Total)
OGBM-Copper
OGBM-Lead
OGBM-Zinc
OGBM-Nickel
OGBM-Silver
OGBM-Sulphur
Standard Deviations
Mean of Standardized Values April 2020 October 2019