chapter 4 - minerals
DESCRIPTION
Chapter 4 - Minerals. Mineral - definition. Naturally occurring Inorganic Solid Specific chemical composition Definite crystalline structure. Mineral Systems. If space is not restricted, a mineral will exhibit a crystal pattern with a definite number of sides and specific angles. - PowerPoint PPT PresentationTRANSCRIPT
Chapter 4 - MineralsChapter 4 - Minerals
Mineral - definitionMineral - definition
Naturally occurringNaturally occurring InorganicInorganic SolidSolid Specific chemical compositionSpecific chemical composition Definite crystalline structureDefinite crystalline structure
Mineral SystemsMineral Systems
If space is not restricted, a mineral If space is not restricted, a mineral will exhibit a crystal pattern with a will exhibit a crystal pattern with a definite number of sides and specific definite number of sides and specific angles.angles.
Mineral IdentificationMineral Identification Hardness – the ability to resist scratching; Hardness – the ability to resist scratching;
ranges from 1 (softest) to 10 (hardest)ranges from 1 (softest) to 10 (hardest)
Mineral IdentificationMineral Identification
_________ – the _________ – the color of the color of the powdered form of powdered form of a minerala mineral
Streak
Mineral IdentificationMineral Identification
_________– the way a mineral reflects _________– the way a mineral reflects lightlight
In our class we will use three terms:In our class we will use three terms: _______– not reflecting light well_______– not reflecting light well
_______ – reflects like water or glass_______ – reflects like water or glass ________– reflects like a metal________– reflects like a metal
Luster
dull
glassy
metallic
Mineral IdentificationMineral Identification
Cleavage (flat surfaces) or Fracture (no flat Cleavage (flat surfaces) or Fracture (no flat surfaces) – the way a mineral __________surfaces) – the way a mineral __________breaks
ReviewReview