Earth Science: Earth Materials and Processes, Book F

Section 3: Uses of Minerals

Self-Check Quiz-Eng.

1.
Why are gems valuable?
A)They are minerals.
B)They are crystals.
C)They are rare.
D)They are hard.
2.
Some gems have __________.
A)fracture
B)no color
C)a low Mohs number
D)a crystalline structure
3.
Amethyst is a variation of which mineral?
A)quartz
B)garnet
C)topaz
D)diamond
4.
You find a red gemstone that is from Sri Lanka. What gem is this most likely?
A)ruby spinel
B)sapphire
C)emerald
D)topaz
5.
Which is an industrial use of diamonds?
A)as cutting tools
B)in lasers
C)in jewelry
D)in watches
6.
The Hope diamond, which is now at the Smithsonian, is said to __________.
A)bring its owner good fortune
B)be an impure diamond
C)bring its owner bad luck
D)be one of the smallest diamonds in the world
7.
Where do most useful minerals occur in nature?
A)in freshwater
B)in ores
C)in seawater
D)in volcanoes
8.
24. Metallic elements dissolved in fluids form in __________.
A)ores
B)magma
C)veins
D)ponds
9.
25. Titanium is useful because it has __________.
A)a high density and low durability
B)a low Mohs number
C)a colorless streak
D)a low density and high durability
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