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Minerals Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Metallic, submetallic, and nonmetallic are descriptions of a mineral's
a.
cleavage.
c.
luster.
b.
streak.
d.
color.
 

 2. 

Muscovite mica will peel off in flat sheets. This is an example of the physical characteristic called ____.
a.
streak
c.
fracture
b.
hardness
d.
cleavage
 

 3. 

Calcite will scratch gypsum. This is an example of the physical characteristics called ____.
a.
hardness
c.
streak
b.
cleavage
d.
fracture
 

 4. 

mc004-1.jpg  Which of these has a metallic luster?
a.
A
c.
C
b.
B
d.
D
 

 5. 

____ is one of the most common silicate mineral groups in the Earth's crust.
a.
Quartz
c.
Feldspar
b.
Carbonate
d.
Mica
 

 6. 

Which of the following physical properties can be expressed in numbers?
a.
color
c.
reaction to acid
b.
luster
d.
hardness
 

 7. 

As magma cools, its ____ align themselves to form a crystal structure, and it becomes a mineral.
a.
electrons
c.
elements
b.
atoms
d.
none of the above
 

 8. 

The largest group of rock-forming minerals consists of the ____.
a.
silicates
c.
oxides
b.
carbonates
d.
halides
 

 9. 

Hot, melted rock beneath the Earth’s crust is called
a.
magma
c.
lava
b.
Feldspar minerals
d.
organic minerals
 

 10. 

When quartz breaks it forms a curved, irregular pattern called
a.
cleavage.
c.
hardness.
b.
luster.
d.
fracture.
 

 11. 

mc011-1.jpg  Which of these has cleavage?
a.
A
c.
C
b.
B
d.
D
 

 12. 

Which of the following is NOT a property that is commonly used to identify minerals?
a.
density
c.
color
b.
hardness
d.
texture
 

 13. 

mc013-1.jpg
On Mohs' hardness scale, which of the following minerals is harder than quartz?
a.
apatite
c.
gypsum
b.
topaz
d.
talc
 

 14. 

mc014-1.jpg
The hardness of quartz is 7. This indicates that quartz will scratch all of the following minerals EXCEPT ____.
a.
talc
c.
apatite
b.
topaz
d.
calcite
 

 15. 

The two most common elements in the Earth's crust are
a.
oxygen and carbon.
c.
silicon and oxygen.
b.
nitrogen and oxygen.
d.
carbon and silicon.
 

 16. 

Which of the following is considered a special property that applies to only a few minerals?
a.
streak
c.
magnetism
b.
luster
d.
color
 

 17. 

A collector of minerals would want a sample of ____.
a.
sugar
c.
coal
b.
wood
d.
salt
 

 18. 

Which statement best describes minerals?
a.
Rocks are made of minerals.
c.
Crystals made by people are minerals.
b.
Minerals are made of rocks.
d.
Minerals can be solid, liquid or gas.
 

 19. 

A mineral's streak
a.
shows the mineral's crystal structure.
b.
is more accurate than color in identifying a mineral.
c.
is the same as a luster test.
d.
will tell you the mineral's specific gravity.
 

 20. 

The color of the powder that a mineral leaves on a piece of white, unglazed porcelain is called the mineral's
a.
luster.
c.
scratch.
b.
streak.
d.
hardness.
 

 21. 

Which of these is not true about minerals?
a.
they are formed by natural processes
b.
they are formed from living organisms
c.
they have atoms arranged in a crystal pattern
d.
they are solids
 

 22. 

Minerals are comprised of one or more ____.
a.
colors
c.
elements
b.
structures
d.
rocks
 

 23. 

On Mohs' hardness scale, which of the following minerals is the softest?
a.
talc
c.
diamond
b.
corundum
d.
orthoclase
 

 24. 

Over 98 percent of the Earth’s crust is made up of how many elements?
a.
8
c.
5
b.
12
d.
90
 

 25. 

mc025-1.jpg
One of the softest minerals is ____.
a.
topaz
c.
amethyst
b.
talc
d.
quartz
 

 26. 

Friedrich Mohs created a scale that is used to measure the ____________ of minerals.
a.
cleavage
c.
color
b.
luster
d.
hardness
 

 27. 

A piece of sand has no value but a diamond is very valuable so it is
a.
a silicate
c.
organic
b.
manmade
d.
a gem
 

 28. 

mc028-1.jpg  Which of these does NOT have fracture?
a.
A
c.
C
b.
B
d.
D
 



 
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