Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The first thing you see on a mineral’s outer surface is
the a. | hardness. | b. | streak. | c. | color. | d. | luster. | | |
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2.
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The
way light bounces off a mineral’s surface is called a. | shine. | b. | streak. | c. | gloss. | d. | luster. | | |
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3.
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How
well a mineral resists scratching is called a. | hardness. | b. | streak. | c. | cleavage. | d. | density. | | |
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4.
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The
color of powder left when a mineral is rubbed against a hard, rough surface
is its a. | color. | b. | luster. | c. | cleavage. | d. | streak. | | |
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5.
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The
tendency of a mineral to break along flat surfaces is called a. | streak. | b. | cleavage. | c. | splitting. | d. | fracturing. | | |
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6.
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Minerals form geometric shapes called a. | gems. | b. | cubes. | c. | ores. | d. | crystals. | | |
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7.
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A mineral that contains a useful substance is called
a(n) a. | gem. | b. | alloy. | c. | ore. | d. | crystal. | | |
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8.
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Minerals valued for being rare and beautiful are
called a. | gems. | b. | metals. | c. | ores. | d. | crystals. | | |
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9.
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Substances that conduct electricity and can be stretched into wires
are a. | alloys. | b. | metals. | c. | ores. | d. | leads. | | |
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10.
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A
solid material of Earth’s crust with a definite composition is a a. | mineral. | b. | rock. | c. | stone. | d. | ore. | | |
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