CS 1

Question 1

Most gems are
A. rocks.
B. organic.
C. minerals.
D. synthetic.

Answer 1

C. Minerals

Question 2

Synthetic gem materials
A. are organic.
B. are not minerals.
C. are usually amorphous.
D. are classified as minerals.

Answer 2

B. are not minerals

Question 3

Media attention in the 1990s regarding its treatment reduced consumer confidence in
A. spinel.
B. emerald.
C. rhodolite.
D. tanzanite.

Answer 3

B. emerald.

Question 4

A substance that consists of atoms of only one kind is a
A. mineral.
B. unit cell.
C. gem species.
D. chemical element.

Answer 4

D. chemical element

Question 5

1. A broad gem category based on chemical composition and crystal structure is a
   A. rock.
   B. group.
   C. gem variety.
   D. gem species.

Answer 5

D. gem species.

Question 6

1. A gem produced by, or derived from, a living organism is
   A. synthetic.
   B. manmade.
   C. organic.
   D. inorganic.

Answer 6

C. organic

Question 7

1. The world’s largest gem-consuming market is
   A. Japan.
   B. Europe.
   C. Thailand.
   D. the United States.

Answer 7

D. the United States.

Question 8

1. Which of the following is an organic gem?
   A. Jade
   B. Ruby
   C. Amber
   D. Tourmaline

Answer 8

C. Amber

Question 9

1. A natural, inorganic substance with a characteristic chemical composition and usually characteristic crystal structure is a(n)
   A. atom.
   B. mineral.
   C. synthetic.
   D. chemical element.

Answer 9

B. mineral.

Question 10

1. Which group does almandine belong to?
   A. Spinel
   B. Garnet
   C. Feldspar
   D. Tourmaline

Answer 10

B. Garnet

Question 11

1. Many colored stones are mined by
   A. large corporations.
   B. massive industrial operations.
   C. mechanized systems and heavy equipment.
   D. independent miners using small-scale mining methods.

Answer 11

D. independent miners using small-scale mining methods.

Question 12

1. A natural material that’s made up of a mass of one or more kinds of mineral crystals is a
   A. rock.
   B. group.
   C. variety.
   D. chemical element.

Answer 12

A. rock.

Question 13

1. Which of the following is a gem variety?
   A. Beryl
   B. Garnet
   C. Andradite
   D. Demantoid

Answer 13

D. Demantoid

Question 14

1. To be a gem, a mineral must be beautiful, durable, and
   A. rare.
   B. colorful.
   C. transparent.
   D. lightweight.

Answer 14

A. rare.

Question 15

1. Which of the following is amorphous?
   A. Beryl
   B. Amber
   C. Garnet
   D. Jadeite

Answer 15

B. Amber