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Earth 4 Vocab

Chapter 4 Vocab

TermDefinition
Mineral Naturally occurring, inorganic solid with a specific chemical composition and a definite crystalline structure.
Crystal Solid in which atoms are arranged in repeating patterns.
Luster The way that a mineral reflects light from its surface; two types- metallic and nonmetalic
Hardness Measure of how easily a mineral can be scratched, which is determined by the arrangement of a mineral's atoms.
Cleavage The manner in which a mineral breaks along planes where atomic bonding is weak.
Fracture When a mineral breaks into pieces with arclike, rough, or jagged edges
Streak Color a mineral leaves when it is rubbed across an unglazed porcelain plate or when it is broken up and powdered.
Specific Gravity Ratio of the mass of a substance to the mass of an equal volume of H20 at 4 degrees C.
Created by: JCrafton14
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