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Minerals-Shika S.
Mineral Vocabs.-Shika S.
Question | Answer |
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Mineral | Natually occuring inorganic solid that has a definite chemical composition and an orderly internal atomic structure. |
Crystal | Solid in which the atoms are arranged in a orderly, repeating pattern. |
Magma | Hot, melted rock material beneath Earth's surface. |
Silicate | Mineral that contains silicon and oxygen and usually one or more other elements. |
Hardness | Measure of how easily a mineral can be scratched. |
Luster | Describes the way a mineral reflects light from its surface; can be metallic or nonmentallic. |
Streak | Color of a mineral when it is in powdered form. |
Cleavage | Physical property of some mierals that causes them to break along smooth, flat surface. |
Fracture | Physical property of some minerals that causes them to break with uneven, rough, or jagged surfaces. |
Gem | Beautiful, rare, highly prized mineral that can be worn in jewerly. |
Ore | Deposit in which a mineral exists in large enough amounts to be mined at a profit. |