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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the 9 physical property tests? |
1. Crystal shape 2. Cleavage 3. Color 4. Luster 5. Hardness 6. Effervescence 7. Streak 8. Hardness 9. Density |
3C LHESMD |
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Crystal Shape/Form |
Shape reflects arrangement of atoms (cubes, rectangular prisms, hexagons) |
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Luster |
The way light bounces off a mineral |
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Effervescence |
When a mineral is broken down by acid and releases gas |
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Streak |
Unpolished porcelain is used to see if a mark is left |
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Density |
Specific gravity - determine ratio of substance the density of freshwater |
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What controls a crystals shape? |
The crystal will eventually take shape of the internal structure |
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What is the most common geologic shape? |
Tetrahedron |
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Will a tetrahedron ever have cleavage? |
No. It has no parallel planes. |
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