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Mineral vocab
Question | Answer |
---|---|
Mineral | Naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms. |
Crystal | A solid in which the atoms are arranged in orderly, repeating patterns. |
Magma | Hot melted rock |
Silicate | Minerals that contain silicon (Si) and Oxygen (O) and usually one or more other elements |
Hardness | How easily a mineral can be scratched |
Luster | The way a mineral reflects light |
Streak | The color of a mineral in powdered form |
Cleavage | Minerals that break with smooth, flat surfaces |
Fracture | Minerals that break with uneven, rough, or jagged surfaces |
Gem | Highly priced rare and beautiful minerals. Gemstones |
Ore | Mineral or rock that contains a useful substance that can be mined at a profit. |