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ES Vocab Ch4

TermDefinition
Mineral A naturally occurring, inorganic solid, with a specific chemical composition and a definite crystalline structure.
Crystal A solid in which the atoms are arranged in repeating patterns.
Luster The way that a mineral reflects light from its surface.
Hardness A measure of how easily a mineral can be scratched.
Cleavage A mineral that splits relatively easily and evenly along one or more plat planes.
Fracture Minerals that break with rough or jagged edges.
Streak The color of a mineral when it is broken up and powdered.
Specific gravity Which is the ratio of the mass of a substance to the mass of an equal volume of water at 4c.
Created by: Alayna Long
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