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vocab Chapter 4
Term | Definition |
---|---|
Mineral | Natrually occurring, inorganic solid, with a specific chemical composition and a definite crystalline structure |
Crystal | a soild in which the atoms are arranged in repeating patterns |
Luster | the way a mineral reflects light (there are two types of luster, metallic and nonmetallic) |
Hardeness | measure of how easily a mineral can be scratched |
Cleavage | describes how a mineral breaks (smoothly) |
Fracture | describes how a mineral breaks (rough) |
Streak | the color of a mineral when it is broken up into a powder |
Specific Gravity | the ratio of the mass of a substance to the mass of an equal volume of water at 4C. |