Geog 102 - Physical Geography » Spring 2021 » Quiz 8

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Question #1
The hardness of a mineral is controlled by the arrangement and chemical bond between atoms.
A.   TRUE
B.   FALSE
Question #2
What is the significance of a mineral's streak?
A.   It determines it's hardness.
B.   Minerals that are the same color may have a different colored streak.
C.   Minerals must be broken down to look under a microscope.
Question #3
What describes how the light reflects off the surface of a mineral, and the degree to which it penetrates into the interior?
A.   Hardness
B.   Streak
C.   Color
D.   Luster
Question #4
Which of the following is not one of the six smaller groups that Non-Silicates break into?
A.   Sulfates
B.   Halides
C.   Oxides
D.   Iron
Question #5
Is the statement below True or False? Silicates form 90% of the Earth's crust.
A.   FALSE
B.   TRUE
Question #6
Use the luster flow chart (Figure 12.3) to answer the following questions about the two specimens pictured in Figure 12.4. Sample B (Figure 12.4, right photograph): What is the luster?
A.   Waxy
B.   Glassy
C.   Metallic
D.   Pearly
Question #7
Is the statement below True or False? Lighter colored silicate minerals are called Felsic Minerals, as they lack Iron (Fe) and Magnesium (Mg).
A.   TRUE
B.   FALSE
Question #8
Which of the following is not a silicate mineral?
A.   Quartz
B.   Carbonate
C.   Mica
D.   Olivine
Question #9
Which of the following is not a criteria for a mineral.
A.   Minerals have an orderly internal structure
B.   Minerals are a naturally occurring substance (not made by humans)
C.   Minerals have a fixed chemical composition (elements)
D.   Mineral are an organic substance (composed of living organisms)
Question #10
What is the term of a rock that has an observable layering or banding?
A.   felsic
B.   crystalized
C.   fractured
D.   foliated
Question #11
Which is not one of the four processes that create sediments?
A.   Deposition
B.   Erosion
C.   Transportation
D.   Melting
Question #12
Use the luster flow chart (Figure 12.3) to answer the following questions about the two specimens pictured in Figure 12.4. Sample A (Figure 12.4, left photograph): What is the luster?
A.   Pearly
B.   Waxy
C.   Glassy
D.   Metallic
Question #13
Chemical sedimentary rocks are dominated by what components?
A.   Those transported as solid clasts
B.   Those transported as ions in a solution
Question #14
Answer the following questions about the two samples shown in Figure 12.7. Sample A (Figure 12.7, left shape): If you had to describe this sample as a shape, what shape would it be? How many directions of cleavage does this sample have?
A.   Blocky, two
B.   Blocky, three
C.   Cube,two
D.   Cube, three
Question #15
What types of rock does not form from the cooling of magma?
A.   Extrusive igneous rock
B.   Metamorphic rock
C.   Intrusive igneous rock
Question #16
Which of the following physical properties is the least reliable?
A.   Luster
B.   Color
C.   Streak
D.   Cleavage
Question #17
Answer the following questions about the two samples shown in Figure 12.7. Sample B (Figure 12.7, right shape): If you had to describe this sample as a shape, what shape would it be? How many directions of cleavage does this sample have?
A.   Rhombohedral, two
B.   Rhombohedral, six
C.   Rhombohedral, three
D.   Blocky, three
Question #18
If you scratch a mineral with your fingernail then you know that the mineral hardness is?
A.   greater than or equal to 3.0
B.   less than or equal to 2.5
C.   equal to 2.0
D.   greater than 3.0
Question #19
Intrusive igneous rocks erupt onto the Earth's surface, and cool quickly to form small crystals.
A.   FALSE
B.   TRUE
Question #20
What rock is formed when sediments are buried, compacted, and cemented?
A.   Metamorphic rock
B.   Extrusive igneous rock
C.   Sedimentary rock
D.   Igneous rock

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