mineral properties how minerals form identifying minerals uses of minerals mining 10 20 30 40 50
TRANSCRIPT
Mineral Properties
How Minerals
Form
Identifying Minerals
Uses of Minerals Mining
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Answer 1 – 10
•a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
Question 1 - 20
• When a mineral is said to be naturally occurring, what does that mean? Give an example of something that is NOT naturally occuring.
Question 1 - 30
• What is inorganic? Give an example of something that is organic that can be confused with a mineral.
Answer 1 – 30
• The mineral cannot form from materials that were once part of a living thing. (Living things are said to be organic)• Ex: Coal and Amber are
ORGANIC
Question 1 - 50
•What does it mean when almost all minerals are compounds? •What are 3 pure minerals?
Answer 2 – 10
Magma- molten material from inside the earth that hardens to form rock.Lava- is magma that reaches the surface.
Answer 2 – 20
Minerals form as hot magma and lava cools inside the earth, or as lava hardens on the surface. When they cool, they form crystals (minerals).
Answer 2 – 30
•Magma deep below cools slowly and forms large crystals•Magma or lava close to the surface cools quicker forming small crystals
Answer 2 – 40
When water evaporates from a solution it leaves behind the dissolved crystals (minerals).
Answer 2 – 50
Sometimes magma deep underground can get water very hot causing elements to dissolve. When the solution cools it causes the elements to leave the solution and crystalize.
Question 3 - 10
• _________________ is the color of its powder. To obtain this, rub the mineral against an unglazed porcelain tile.
Question 3 - 30
• Talc is a 1 and diamond is a 10. A diamond can scratch Talc. This describes what and states what?
Answer 3 – 30
•Moh’s Hardness Scale, A mineral can scratch any mineral softer than itself. (But not any mineral harder)
Answer 3 – 50 Fluorescence- Glows in UV lightMagnetism- Attracts ferromagnetic
materialsAcid Test- reacts chemicallyOptical Properties- bends lightRadioactivity- produces its own energyElectrical properties- conducts electricity
Answer 4 – 30
• Metals such as aluminum, iron, copper, and silver are useful because they can be flattened, hammered, and molded.
• Examples of minerals are filaments for old light bulbs, aluminum foil, steel beams, tools, and machines.
Answer 4 – 50
• a narrow channel or slab of mineral that is different from the surrounding rock. • Gold and silver
Question 5 - 10
• A rock that contains metal or other useful minerals that can be mined and sold for profit is called
Question 5 - 20
• earthmoving equipment scrapes away soil topsoil to expose ore underneath uses what mining?
Question 5 - 40
•When minerals occur in veins, miners must use what type of mining to remove the ore?