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Minerals Quest
Mineral Vocab
Question | Answer |
---|---|
mineral | a naturally occuring,inorganic,crystalline solid, with a definate chemical composition,and an orderly arrangment of atoms |
crystal | a solid in which the atoms are arranged in orderly, repeating patterns |
magma | hot melted rock material that cools when it reaches the Earth's surface |
silicate | minerals that contain silicon and oxygen and usually one or more other elements |
hardness | how easily the mineral can be scratched |
luster | the way the mineral reflects light |
streak | the color the mineral is when it is in powdered form |
cleavage | minerals that break along smooth,flat surfaces |
fracture | minerals that break with uneven,rough,or jagged surfaces |
gem | highly priced minerals because they are rare and beautiful |
ore | a mineral or rock that contains a useful substance that can be mined for a profit |