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E Science Chap 3

Vocabulary

TermDefinition
Mineral Naturally occurring inorganic solid that has a definite chemical composition
Crystal Solid in which atoms are arranged in a repeating pattern
Magma Hot melted rock material beneath Earths 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
Specific Gravity Ratio of a minerals weight compared to the weight of an equal volume of water
Streak Color of a mineral in powder form
Cleavage Physical property of some mineral that causes them to break along smooth surfaces
Fracture Physical property of some minerals that cause them to break uneven, rough, and jagged
Gem Beautiful, rare, highly prized mineral that is put in jewelry
Created by: joseph60romero
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