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Minerals
Test Description: Review for minerals test
Instructions: Answer all questions to get your test result.
1) A mineral scratches a penny (3.5) and glass (6.5), what would be the hardness of the mineral?
A
about 7
B
about 5.5
C
about 4
D
about 5
2) Using the hardness scale on the board, apatite would scratch
A
topaz
B
quartz
C
feldspar
D
fluorite
3) Using Mohs Hardness Scale on the board, an iron nail would not scratch
A
gypsum
B
calcite
C
talc
D
quartz
4) Which of the choices is NOT true about a mineral?
A
it has a definite chemical composition
B
it is made in a lab
C
it is a solid
D
it has a definite crystal structure
5) The scale used to measure the hardness of a mineral is
A
the mineral hardness scale
B
Mohs Scratch Scale
C
Mohs Hardness Scale
D
Fredricks Hardness Scale
6) A naturally occurring, inorganic solid with a definite crystal structure chemical make-up is
A
specific gravity
B
a rock
C
density
D
a mineral
7) According to the hardness scale, fluorite can scratch
A
talc, gypsum, and calcite
B
quartz, feldspar, and apatite
C
apatite, talc, and gypsum
D
calcite, apatite, and feldspar
8) Which mineral cannot scratch your fingernail?
A
quartz
B
talc
C
apatite
D
calcite
9) Silky, pearly, dull, waxy and earthy are all examples of
A
luster
B
color
C
breakage pattern
D
streak
10) Quartz (7) can scratch a diamond, apatite, and feldspar.
A
true
B
false
11) The hardest mineral on Mohs Scale is
A
talc
B
quartz
C
diamond
D
feldspar
12) Cleavage/fracture of a mineral tells you
A
breakage pattern
B
hardness
C
color
D
streak
13) An object made in a lab that is solid has a crystal structure. Not a mineral because
A
it has a definite chemical composition
B
it is a solid
C
it is inorganic
D
it is not made naturally
14) The hardness of a mineral can be tested by
A
a scratch test
B
throwing it against the wall
C
hitting it with a hammer
D
stepping on it
15) Color is not a good way to identify minerals because
A
minerals with different colors break differently
B
minerals with the same color have the same hardness
C
most minerals are colorless
D
the same mineral can be different colors
16) Which are ways minerals can be identified?
A
color, shape, size, streak and hardness
B
color, streak, size, hardness, and luster
C
color, shape, streak, density, and hardness
D
color, shape, size, streak and hardness
17) The way light reflects off a mineral is
A
streak
B
cleavage
C
luster
D
color
18) What property would be BEST to identify pyrite (fool's gold) and real gold?
A
color
B
streak
C
density
D
hardness
19) A mineral has a mass of 6.9g and a vol. of 3mL. What is the density of the mineral. (d=m/V)
A
13.8g/mL
B
21.7g/mL
C
2.3g/mL
D
3.2g/mL
20) Quartz and diamond are often mistaken for each other. How can the difference be known?
A
hardness
B
luster
C
scratch
D
color
*select an answer for all questions
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