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Science 7 minerals
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6
Science
7th Grade
11/27/2007
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Term
luster
 Definition
The way a surface reflects light.
Term
streak
 Definition
The color of a mineral in powdered form.
Term
cleavage
 Definition
Tendency of some minerals to break along smooth, flat lines.
Term
fracture
 Definition
Manner in which a mineral breaks along either curved or irregular surfaces.
Term
hardness
 Definition
A mineral's resistance to being scratched.
Term
density
 Definition
A measure of how much matter is in a given space.
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