Transcript Minerals: Shaping our Crust File

Minerals
Shaping our Crust
Minerals
5 Characteristics
Solid
Solids
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Solids have definite shapes & volumes
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Liquids & gases …
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Able to expand & contract easily
volume changes along w/ their density
Therefore: density can ID a mineral
Minerals
5 Characteristics
Solid
Inorganic
Naturally
Occurring
Naturally Occurring/
Inorganic
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Formed by natural processes
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Inorganic: can never have been living
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Non-Ex/ Coal, Sugar
Lab made rocks are NOT minerals
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Ex/ industrial diamonds
Minerals
5 Characteristics
Solid
Inorganic
Naturally
Occurring
Definite
Crystal
Structure
Specific
Composition
Definite Crystal Sructure
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Crystals: solids w/ atoms arranged in repeating
patterns.
The formation and size of crystals depend on
the environment they formed in.
Specific Chemical Composition
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Most minerals made of compounds
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Few are made of one element
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Ex/ Diamond (C), Gold (Au), Sulfur (S), etc.
Quartz
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Combination of Silicon (Si) and Oxygen (O), or SiO4
The amount and arrangement of these elements are
unique to quartz