Question 1

Trace amounts of impurity in a mineral can commonly produce significant differences in __________ among individual crystals of this mineral.

Accepted Answer

A)  color
B)  cleavage
C)  luster
D)  streakE) A) and B)
F) A) and C)

Question 2

Diamonds are usually found in

Accepted Answer

A)  pegmatite.
B)  kimberlite.
C)  sandstone
D)  granite.E) A) and B)
F) All of the above

Question 3

Which common rock-forming mineral shows up in all three major rock types (igneous, sedimentary, and	metamorphic) ?

Accepted Answer

A)  diamond
B)  quartz
C)  olivine
D)  kaoliniteE) None of the above
F) A) and C)

Question 4

What is the definition of a rock?

Accepted Answer

A rock is defined by geologist...

Question 5

Using the Mohs hardness scale below, which of the following statements is FALSE?

Accepted Answer

A)  A fingernail can scratch a sample of gypsum.
B)  Diamonds are twice as hard as apatite.
C)  Diamonds are more than seven times as hard as quartz.
D)  Quartz cannot scratch anything made of diamond.E) All of the above
F) B) and C)

Question 6

Which of the following minerals is a silicate?

Accepted Answer

A)  galena
B)  olivine
C)  calcite
D)  haliteE) A) and B)
F) A) and C)

Question 7

Which of the following common minerals is softest?

Accepted Answer

A)  quartz
B)  calcite
C)  talc
D)  fluoriteE) A) and D)
F) B) and C)

Question 8

The tetrahedral structure that forms the backbone of all silicate minerals is composed of silicon and what other element?

Accepted Answer

A)  magnesium
B)  oxygen
C)  iron
D)  carbonE) B) and C)
F) A) and B)

Question 9

Which of the following is NOT true about minerals?

Accepted Answer

A)  All minerals are compounds of more than one element.
B)  All minerals are naturally made.
C)  Some minerals are precipitated by organisms.
D)  All minerals can be expressed as chemical formulas.E) None of the above
F) B) and C)

Question 10

Geologists refer to an exposure of bedrock on the surface as a(n)

Accepted Answer

A)  bed.
B)  foliation.
C)  outcrop.
D)  pegmatite.E) None of the above
F) B) and D)

Question 11

Pyrite (FeS₂)  is in which mineral class?

Accepted Answer

A)  silicates
B)  carbonates
C)  oxides
D)  sulfidesE) A) and B)
F) B) and D)

Question 12

Explain why a cubic zirconia is NOT a mineral.

Accepted Answer

Cubic zirconia is ma...

Question 13

How are sedimentary rocks different from igneous rocks?

Accepted Answer

A sedimentary rock forms mainly either b...

Question 14

Which of the following minerals is more commonly known as table salt?

Accepted Answer

A)  gypsum
B)  feldspar
C)  halite
D)  quartzE) B) and C)
F) C) and D)

Question 15

Minerals are all naturally occurring solid substances with a definable chemical composition. They must also possess

Accepted Answer

A)  an ability to be synthesized in the laboratory as well as be found in nature.
B)  metallic elements, such as iron, calcium, or magnesium.
C)  a nonmetallic, vitreous luster.
D)  a fixed crystalline structure (spatial arrangement of atoms and ions) .E) B) and C)
F) A) and D)

Question 16

For most minerals, the streak color obtained when the mineral is scratched against a porcelain plate is

Accepted Answer

A)  only useful if the mineral is softer than porcelain.
B)  more variable than the color in a hand sample among crystals.
C)  not useful because the porcelain will often chemically react with the mineral.
D)  always dark brown or black.E) A) and B)
F) None of the above

Question 17

Which of the following is NOT a way in which specific rock types can be distinguished from one another?

Accepted Answer

A)  texture
B)  crystal shape
C)  composition
D)  layeringE) A) and B)
F) A) and C)

Question 18

When a solution becomes oversaturated, new solid particles are said to

Accepted Answer

A)  precipitate from the solution.
B)  dissolve into the solution.
C)  react with the solution and produce heat.
D)  rapidly expand, causing an explosion.E) C) and D)
F) B) and C)

Question 19

Potassium feldspar (KAlSi₃O₈)  is in which mineral class?

Accepted Answer

A)  silicates
B)  carbonates
C)  oxides
D)  sulfidesE) All of the above
F) C) and D)

Question 20

What is a thin section and how are they used in geologic study?

Accepted Answer

A thin section is a thin-cut slice of ro...

Exam 3: Patterns in Nature: Minerals

Which of the following minerals is a silicate?

Correct AnswerverifiedShow Answer

Geologists refer to an exposure of bedrock on the surface as a(n)

Correct AnswerverifiedShow Answer

Pyrite (FeS₂) is in which mineral class?

Correct AnswerverifiedShow Answer

What is a thin section and how are they used in geologic study?

Correct AnswerverifiedA thin section is a thin-cut slice of ro...View AnswerShow Answer

Explain why a cubic zirconia is NOT a mineral.

Correct AnswerverifiedCubic zirconia is ma...View AnswerShow Answer

Minerals are all naturally occurring solid substances with a definable chemical composition. They must also possess

Correct AnswerverifiedShow Answer

Which of the following is NOT a way in which specific rock types can be distinguished from one another?

Correct AnswerverifiedShow Answer

Potassium feldspar (KAlSi₃O₈) is in which mineral class?

Correct AnswerverifiedShow Answer

Which common rock-forming mineral shows up in all three major rock types (igneous, sedimentary, and metamorphic) ?

Correct AnswerverifiedShow Answer

Trace amounts of impurity in a mineral can commonly produce significant differences in __________ among individual crystals of this mineral.

Correct AnswerverifiedShow Answer

Which of the following is NOT true about minerals?

Correct AnswerverifiedShow Answer

Using the Mohs hardness scale below, which of the following statements is FALSE?

Correct AnswerverifiedShow Answer

For most minerals, the streak color obtained when the mineral is scratched against a porcelain plate is

Correct AnswerverifiedShow Answer

Which of the following minerals is more commonly known as table salt?

Correct AnswerverifiedShow Answer

When a solution becomes oversaturated, new solid particles are said to

Correct AnswerverifiedShow Answer

What is the definition of a rock?

Correct AnswerverifiedA rock is defined by geologist...View AnswerShow Answer

The tetrahedral structure that forms the backbone of all silicate minerals is composed of silicon and what other element?

Correct AnswerverifiedShow Answer

Which of the following common minerals is softest?

Correct AnswerverifiedShow Answer

How are sedimentary rocks different from igneous rocks?

Correct AnswerverifiedA sedimentary rock forms mainly either b...View AnswerShow Answer

Diamonds are usually found in

Correct AnswerverifiedShow Answer

Correct Answer
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A thin section is a thin-cut slice of ro...
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Correct Answer
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Cubic zirconia is ma...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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A rock is defined by geologist...
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Correct Answer
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Correct Answer
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Correct Answer
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A sedimentary rock forms mainly either b...
View Answer

Correct Answer
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