Minerals
Practice Test
1.
What are the common minerals called?
a.
crystal minerals
b.
abundant minerals
c.
igneous minerals
d.
rock-forming minerals
2.
What is an example of an oxide?
a.
calcite
b.
sulfur
c.
magnetite
d.
anhydrite
3.
What is the most abundant element in Earth's crust?
SC.D.1.4.2
a.
iron
b.
silica
c.
potassium
d.
oxygen
4.
Which is not a characteristic of a mineral?
a.
definite crystal structure
b.
organic solid
c.
naturally occurring
d.
specific chemical composition
5.
What is the molten material under Earth's crust called?
a.
solution
b.
magma
c.
minerals
d.
basalt
6.
What is the hardness of quartz?
a.
2
b.
7
c.
9
d.
4
7.
__________ is the measure of how easily a mineral can be scratched.
a.
Hardness
b.
Streak
c.
Luster
d.
Specific gravity
8.
A mineral is __________ if it can be mined for profit.
a.
a crystal
b.
an igneous rock
c.
an ore
d.
a rock
9.
According to the table, which mineral is capable of scratching garnet?
Mineral
Color
Hardness
Gold
Metallic gold
2.5- 3
Apatite
Blue, green
5
Pyrite
Metallic pale brass, gold
6-6.5
Garnet
Red, deep red, brown
7.5- 8
Corundumm
Red, deep red
9
a.
corundum
b.
gold
c.
pyrite
d.
apatite
10.
What makes a mineral a gem?
a.
its pearly luster
b.
its deep color
c.
its association with native elements
d.
its rarity and beauty
