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ES - Ch 3 - Minerals

Minerals

QuestionAnswer
Mineral Naturally occurring inorganic solid that has a definite chemical composition and an orderly internal atomic structure.
Crystal Solid in which the atoms are arranged in an orderly, repeating pattern.
Magma Hot, melted rock material beneath Earth's surface
Silicate Describes a mineral that contains silicon and oxygen and usually one or more other elements.
Hardness Measure of how easily a mineral can be scratched.
Streak Color of a mineral when it is in powdered form.
Luster Describes the way a mineral reflects light from its surface; can be metallic or nonmetallic.
Cleavage Physical property of some minerals that causes them to break along smooth, flat surfaces.
Specific Gravity Ratio of a mineral's weight compared with the weight of an equal volume of water.
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 jewelry.
Ore Deposit in which a mineral exists in large enough amounts to be mined at a profit.
Created by: aereed
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