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science vocab
Minerals
Question | Answer |
---|---|
Mineral | A 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 | Heated rock material |
Silicate | Minerals that contain silicon and oxygen and usually contain one or more elements |
Hardness | A measure of how easily a mineral can be scratched |
Luster | The way a mineral reflects light |
Streak | The color of a mineral in its powered form |
Cleavage | Minerals that break along smooth flat surfaces have this |
Fracture | Minerals that break with uneven, rough, or jagged surfaces have this |
Gem | Highly praised because of how rare they are and their beauty |
Ore | Minerals that are mined for a profit |