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Exam 3: Matter and Minerals

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Question 41

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________ is the study of mineral materials.

A) Mineralogy
B) Lithology
C) Mineralosophy
D) Historical Geology

E) B) and D)
F) None of the above

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Question 42

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Why will an iron-rich olivine have a higher density than a magnesium-rich olivine?

A) More magnesium is needed to equal the same atomic charge as iron.
B) Iron-rich olivine has smaller crystals, so more of them will fit into the same area.
C) Magnesium-rich olivine has more silicon, which is less dense.
D) Iron has a greater atomic mass than magnesium and therefore is heavier.

E) None of the above
F) A) and B)

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Question 43

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Silica tetrahedra are able to link into long chains that share oxygen ions through the process of ________.

Which of the following is not part of the definition of a mineral?

Consider the definition of a mineral.Why would a synthetic gemstone fail this definition and not be considered a true mineral?

Which kind of mineral tenacity refers to a mineral being deformed by being hammered without breaking?

What is the charge of a single proton?

Assuming well-formed crystals, how many cleavage surfaces are present on the sample in this image? (Note: Cleavage surfaces are not cleavage planes.)

The addition of which of the following will control a mineral's color?

Certain diamond companies use the advertising slogan "Diamonds are forever." Why, from a geologic perspective, might this not be accurate?

Explain how differences in molecular bonds in minerals can result in cleavage versus fracture.

Ferromagnesian minerals are those that contain a great deal of ________.

Which of the following materials will form through evaporation?

Limestone is a sedimentary rock that is found over large areas of the United States.Using this information, explain what the environment of deposition was like at the time of limestone formation and how the mineral in the limestone formed?