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rocks and minerals
important vocabulary for identifying minerals
7
Science
6th Grade
10/19/2017
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Term
mineral
 Definition
a naturally formed, inorganic solid that has a definite crystalline structure
Term
luster
 Definition
the way a mineral reflects light
Term
streak
 Definition
referes to the color of a mineral as powder
Term
cleavage
 Definition
the splitting of a mineral with a smooth flat surface
Term
fracture
 Definition
When a mineral brakes randomly ( with random irregular shapes)
Term
hardness
 Definition
The measure of ability to resist scratching
Term
density
 Definition
the relationship between the mass and volume of an object
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