Term
| 3 properties that define a mineral |
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Definition
1) Naturally occurring
2) Definite chemical composition
3) Particular atomic structure
*composition and architecture determine the physical properties |
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Term
| Is color one of the more reliable properties used to identify minerals? Why or why not? |
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Definition
| No because impurities/defects within the crystal structure can affect the color |
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Term
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Definition
| Metallic because it looks like an opaque metal |
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Term
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Definition
| Vitreous because it's transparent and reflective |
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Term
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Definition
| Dull because of the weak reflection of light and earthiness |
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Term
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Definition
| Pearly like the inside of a clam shell |
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Term
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Definition
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Term
| Hardness of a copper penny |
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Definition
| 3.5 (must be 1982 or older) |
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Term
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Definition
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Term
| Minerals softer than fingernails (and their hardness) |
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Definition
1) Gypsum = 2
2) Talc = 1 |
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Term
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Definition
| 3 (can't scratch glass/steel) |
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Term
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Definition
| 7 (can scratch glass and steel) |
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Term
| Hardest mineral and its hardness |
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Definition
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Term
| Streak is most useful for identifying minerals with which type of luster? |
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Definition
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Definition
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Definition
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Definition
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Definition
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Term
| How do you recognize cleavage planes in samples with poorly displayed cleavages? |
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Definition
| Look for small flashes of light |
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Term
Striations (plagioclase) or veinlets (feldspar)?
[image] |
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Definition
| Striations in plagioclase |
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Term
Striations (plagioclase) or veinlets (feldspar)?
[image] |
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Definition
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Term
| Which 2 minerals feel soapy/slippery? |
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Definition
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Term
| What can smell reveal about a mineral? How do you determine smell? |
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Definition
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