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12 Cards in this Set
- Front
- Back
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mineral |
naturally occurring inorganic solid that has a definite chemical composition and orderly internal atomic structure |
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crystal |
solid in which the atoms are arranged in an orderly, repeating pattern |
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magma |
hot, melted rock material beneath Earth’s surface |
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silicate |
mineral that contains silicon and oxygen and usually one or more other elements |
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hardness |
measure of how easily a mineral can be scratched |
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luster |
describes how a mineral reflects light from its surface; can be metallic or nonmetallic |
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specific gravity |
ratio of a mineral’s weight compared with the weight of an equal volume of water |
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streak |
color of a mineral when it is in powdered form |
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cleavage |
physical property of some minerals that causes them to break along smooth, flat surfaces |
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fracture |
physical property of some minerals that causes them to break with uneven, rough, or jagged surfaces |
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gem |
beautiful, rare, highly prized mineral that can be worn in jewelry |
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ore |
deposit in which a mineral exists in large enough amounts to be mined at a profit |
