Question 1

Emeralds and aquamarines are gem quality single crystals of the more ordinary mineral________ .

Accepted Answer

A)   epidote
B)   olivine
C)   augite
D)   berylE) A) and D)
F) A) and C)

Question 2

Which mineral is composed of silicon dioxide (SiO2) ?

Accepted Answer

A)   calcite
B)   diamond
C)   quartz
D)   olivineE) C) and D)
F) None of the above

Question 3

These non- silicate minerals are found predominantly in sedimentary rocks.

Accepted Answer

A)   feldspar, fluorite, and malachite
B)   amphibole, clays, and quartz
C)   calcite, gypsum, and halite
D)   graphite, chromite, and ilmeniteE) B) and C)
F) A) and B)

Question 4

Atoms of the same element, carbon for example, always have the same _________.

Accepted Answer

A)   number of neutrons in its chemical bonds
B)   atomic weight
C)   number of protons in the nucleus
D)   number of electrons in the nucleusE) All of the above
F) A) and D)

Question 5

Which minerals that make up the Mohs scale are softer than your fingernail?

Accepted Answer

A)   beryl, garnet, tourmaline
B)   feldspar, quartz, topaz, corundum, diamond
C)   gypsum and talc
D)   calcite, fluorite, apatiteE) A) and C)
F) All of the above

Question 6

The true colour of a mineral as seen in its powdered form is called it's____ .

Accepted Answer

A)   iridescence
B)   streak
C)   chatoyancy
D)   birefringenceE) A) and C)
F) A) and D)

Question 7

Chrysotile, crocidolite, and amosite are different mineralogic forms of what industrial commodity?

Accepted Answer

A)   gemstones
B)   Portland cement
C)   asbestos
D)   metallic sulphide oresE) A) and D)
F) None of the above

Question 8

Which mineral is easily soluble in water at room temperature conditions?

Accepted Answer

A)   talc
B)   halite
C)   diamond
D)   olivineE) None of the above
F) A) and C)

Question 9

Hornblende and the other amphiboles have what type of silicate structure?

Accepted Answer

A)   sheet
B)   3- D framework
C)   metallic
D)   double chainsE) B) and C)
F) All of the above

Question 10

Aluminum ions have what charge in most rock- forming minerals?

Accepted Answer

A)   4-
B)   4+
C)   3+
D)   2+E) None of the above
F) A) and B)

Question 11

Which of the following denotes the massive, positively charged, nuclear particles?

Accepted Answer

A)   electrons
B)   protons
C)   isotrons
D)   neutronsE) A) and C)
F) All of the above

Question 12

Which group of silicates has the most sharing of corner oxygen atoms?

Accepted Answer

A)   single chain like pyroxene
B)   double chain like amphibole
C)   framework like feldspar
D)   sheet like micaE) B) and D)
F) B) and C)

Question 13

An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?

Accepted Answer

A)   6
B)   19
C)   13
D)   7E) None of the above
F) A) and D)

Question 14

The principal ore of mercury is__________ .

Accepted Answer

A)   galena
B)   anhydrite
C)   sylvite
D)   cinnabarE) None of the above
F) C) and D)

Question 15

Which of the following silicate minerals have 3- dimensional framework structures?

Accepted Answer

A)   quartz and halite
B)   micas and gypsum
C)   hornblende and olivine
D)   feldspars and quartzE) A) and B)
F) B) and C)

Question 16

Which group of minerals are the most abundant in the Earth's crust?

Accepted Answer

A)   chlorides
B)   sulphides
C)   carbonates
D)   silicatesE) None of the above
F) All of the above

Question 17

Which of the following is not a rock- forming silicate mineral?

Accepted Answer

A)   calcite
B)   garnet
C)   orthoclase
D)   quartzE) All of the above
F) A) and B)

Question 18

Ferromagnesian minerals generally exhibit which of the following properties?

Accepted Answer

A)   dark colour, specific gravity higher than quartz
B)   a light colour, metallic lustre
C)   nonmetallic lustre, light colour
D)   one perfect cleavage, colourlessE) None of the above
F) A) and B)

Question 19

_______is the external expression of orderly internal arrangement of atoms in a mineral crystal.

Accepted Answer

A)   Colour
B)   Streak
C)   Lustre
D)   HabitE) C) and D)
F) All of the above

Question 20

In feldspars, what element can be thought of as substituting for silicon in the tetrahedral ionic sites?

Accepted Answer

A)   potassium
B)   aluminum
C)   sodium
D)   carbonE) A) and B)
F) A) and C)

Exam 12: Plate Tectonics: the Framework for Modern Geology

Which minerals that make up the Mohs scale are softer than your fingernail?

Correct AnswerverifiedShow Answer

Aluminum ions have what charge in most rock- forming minerals?

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The principal ore of mercury is__________ .

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_______is the external expression of orderly internal arrangement of atoms in a mineral crystal.

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An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?

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Emeralds and aquamarines are gem quality single crystals of the more ordinary mineral________ .

Correct AnswerverifiedShow Answer

Which group of minerals are the most abundant in the Earth's crust?

Correct AnswerverifiedShow Answer

Chrysotile, crocidolite, and amosite are different mineralogic forms of what industrial commodity?

Correct AnswerverifiedShow Answer

In feldspars, what element can be thought of as substituting for silicon in the tetrahedral ionic sites?

Correct AnswerverifiedShow Answer

These non- silicate minerals are found predominantly in sedimentary rocks.

Correct AnswerverifiedShow Answer

Which of the following silicate minerals have 3- dimensional framework structures?

Correct AnswerverifiedShow Answer

Which group of silicates has the most sharing of corner oxygen atoms?

Correct AnswerverifiedShow Answer

Which mineral is easily soluble in water at room temperature conditions?

Correct AnswerverifiedShow Answer

Which of the following denotes the massive, positively charged, nuclear particles?

Correct AnswerverifiedShow Answer

The true colour of a mineral as seen in its powdered form is called it's____ .

Correct AnswerverifiedShow Answer

Which mineral is composed of silicon dioxide (SiO2) ?

Correct AnswerverifiedShow Answer

Ferromagnesian minerals generally exhibit which of the following properties?

Correct AnswerverifiedShow Answer

Atoms of the same element, carbon for example, always have the same _________.

Correct AnswerverifiedShow Answer

Which of the following is not a rock- forming silicate mineral?

Correct AnswerverifiedShow Answer

Hornblende and the other amphiboles have what type of silicate structure?

Correct AnswerverifiedShow Answer

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