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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