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quiz 4
earth science
6
Science
8th Grade
10/06/2010
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Term
What is fracture?
 Definition
When a mineral breaks off leaving jagged and uneven surfaces.
Term
What is streak?
 Definition
The color of the mineral when it is broken up and powdered
Term
What is fracture/cleavage?
 Definition
The way a mineral breaks
Term
What are seven types of luster?
 Definition
greasy shiny waxy glassy pearly earthy dull
Term
What is cleavage?
 Definition
when a mineral breaks off leaaving smooth and even surfaces
Term
What is luster?
 Definition
describes how light is reflected off a minerals surface
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