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Rocks and Minerals

Chapter 3 Vocab

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