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chap four vocabualry

vocab words

termDefinition
mineral naturally occurring inorganic solid with a specific chemical compositions and a definite crystalline structure that forms from magma or from supersaturated solution
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 non metallic
hardness measure of how easily a mineral can be scratched which is determined by the arrangement of a minerals atoms
cleavage when 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 broke up and powered.
specific gravity ratio of the mass of a substance to the mass of an equal volume.
Created by: melissa2014
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