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Ch 2 Section 1

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 nonmetallic
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 arc like, 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 H2O at 4o C
Created by: selenamercado
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