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Minerals Part II
Test Description: 8th grade OK PASS
Instructions: Answer all questions to get your test result.
1) Muscovite mica will peel off in flat sheets. This is an example of the physical characteristic called ____.
A
hardness
B
fracture
C
streak
D
cleavage
2) Calcite will scratch gypsum. This is an example of the physical characteristics called ____.
A
streak
B
cleavage
C
hardness
D
fracture
3) The properties of being ____ make a diamond a gemstone.
A
rare and beautiful
B
useful and profitable
C
easy to obtain and beautiful
D
rare and profitable
4) If the cost of separating a mineral from waste rock becomes too great, the mineral may no longer be classified as an ore. This happens because ____.
A
the demand for the mineral has decreased
B
the mineral has lost its usefulness
C
the mineral can no longer be mined at a profit
D
the mineral is disolved in HCl
5) A gem is _________ and _________
A
profitable, useful
B
ugly, furry
C
beautiful, rare
D
hard, shiney
6) color of a powdered mineral
A
color
B
fracture
C
cleavage
D
streak
7) how light is reflected from a mineral
A
luster
B
ores
C
fracture
D
color
8) the tendency of a mineral to break along a smooth, flat surface
A
hardness
B
fracture
C
ores
D
cleavage
9) the tendency of minerals to break with rough or jagged surfaces
A
fracture
B
streak
C
cleavage
D
hardness
10) minerals mined because they contain useful substances
A
color
B
ores
C
luster
D
hardness
*select an answer for all questions
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