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22 Cards in this Set
- Front
- Back
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Rubs off the fingers
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talc
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Scratched by fingernail
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gypsum
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Scratched by a penny
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calcite
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Scratched easily by a knife
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flurite
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Scratched with diffidulty by a knife
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apatite
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Scrtached by a file; can easily scratch glass
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orthoclase
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Scratched by diamond and corundum
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topaz
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Corundum
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Scratched only by diamond
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Hardest known, cannot be scratched by any other mineral
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Diamond
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How we see the mineral
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color
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How the mineral reflects light
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luster
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Color of the pwder on an unglazed porcelain tile
(streak plate) |
streak
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Split along a smooth place/
Fracture-regular break, conchoidal break |
cleavage
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Mass/volume
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density
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Magnetic, flourescent, radioactive, optical, chemical, taste
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Special Properties
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4 questions used to determine minerals
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1) Is it non-living material?
2) Is it a solid? 3) Does it have a crystalline structure? 4) Is it formed in nature? |
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How are minerals grouped?
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1) Silicate Minerals
2) Nonsilicate minerals |
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What are silicate minerals?
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Minerals that contain a combination of silicon, oxygen, and 1 or more metals
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What are nonsilicate minerals?
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Minerals that do not contain copounds of silicon and oxygen
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Name common silicate minerals
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1) Quartz
2) Mica 3) Feldspar |
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Name common classes of nonsilicate minerals
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1) native lements
2) carbonates 3) halides 4) oxides 5) sulfates 6) sulfides |
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What test is used to determinee minerals?
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strekk colorr cleavage (:
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