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Minerals

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

 1. 

What is the hardest known mineral?
a.
talc
b.
quartz
c.
diamond
d.
gold
 

 2. 

A mineral must be inorganic, which means that it
a.
contains compounds.
b.
has materials made by humans.
c.
is made of parts of living things.
d.
was never alive.
 

 3. 

Coal is NOT classified as a mineral because
a.
it is useful as a fuel.
b.
it is made of plants that were once alive
c.
it is not valuable.
d.
it is part of Earth's crust.
 

 4. 

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

 5. 

On Mohs' hardness scale, which of the following minerals is the softest?
a.
talc
c.
gypsum
b.
apatite
d.
topaz
 

 6. 

The term used to describe how a mineral reflects light from its surface is
a.
fluorescence.
b.
streak.
c.
density.
d.
luster.
 

 7. 

The repeating pattern of a mineral's particles forms a solid called a(n)
a.
crystal.
b.
element.
c.
compound.
d.
rock.
 

 8. 

____ minerals are shiny and soft, and they separate easily into sheets when they break.
a.
Quartz
c.
Feldspar
b.
Mica
d.
Oxide
 

 9. 

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

 10. 

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

 11. 

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

 12. 

A mineral that does not contain combinatins of oxygen and silicon.
a.
silicates
c.
compound
b.
nonsilicates
d.
crystals
 

 13. 

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

 14. 

The color of a mineral's powder is called its
a.
streak.
b.
luster.
c.
density.
d.
hardness.
 

 15. 

Most minerals do NOT split apart evenly. Instead, they have a characteristic type of
a.
cleavage.
b.
fracture.
c.
crystal.
d.
luster.
 



 
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