Glencoe Earth Science

Chapter 3: Minerals

Minerals

1
Glass is not a crystal because __________.
A)it is not crystalline
B)it fractures
C)it is transparent
D)it is a solid
2
Titanium is useful because it has __________.
A)a high density and low durability
B)a colorless streak
C)a low Mohs number
D)a low density and high durability
3
Whether a mineral has cleavage or fracture is determined by the __________.
A)hardness of the mineral
B)shape of its surface
C)arrangement of its atoms
D)specific gravity
4
All minerals are __________.
A)unordered
B)naturally occurring
C)organic solids
D)made in a lab
5
Salt from evaporated seawater has been formed from __________.
A)magma
B)volcanoes
C)solution
D)artificial means
6
Which is an example of a mineral with a nonmetallic luster?
A)pyrite
B)graphite
C)quartz
D)gold
7
The hardest mineral, with a 10 on the Mohs scale, is __________.
A)talc
B)quartz
C)iron
D)diamond
8
Streak measures the color of a mineral's __________.
A)powder
B)crystals
C)atoms
D)surface
9
Which is an industrial use of diamonds?
A)as cutting tools
B)in lasers
C)in watches
D)in jewelry
10
Some gems have __________.
A)fracture
B)a crystalline structure
C)a low Mohs number
D)no color
11
Common physical properties of minerals include all of the following except __________.
A)appearance
B)specific gravity
C)hardness
D)flammability
12
What is the easiest way to tell if a sample is gold or pyrite?
A)luster
B)streak
C)hardness
D)appearance
13
An inorganic crystalline solid is formed in a lab. Why is it not a mineral?
A)It is not naturally occurring.
B)It is a crystal.
C)It is inorganic.
D)It is a solid.
14
Large crystals can form when magma __________.
A)erupts from a volcano
B)cools slowly
C)cools quickly
D)melts
15
What are the two most common elements in minerals?
A)oxygen and silicon
B)iron and oxygen
C)oxygen and sulfur
D)carbon and silicon
16
The Hope diamond, which is now at the Smithsonian, is said to __________.
A)bring its owner good fortune
B)bring its owner bad luck
C)be one of the smallest diamonds in the world
D)be an impure diamond
17
The specific gravity of a mineral compares its weight with an equal volume of __________.
A)water
B)rock
C)air
D)diamond
18
All of the following are some other property used to identify minerals except __________.
A)magnetism
B)the ability for the mineral to create a double image
C)reaction to hydrochloric acid
D)boiling point
19
You find a red gemstone that is from Sri Lanka. What gem is this most likely?
A)topaz
B)emerald
C)ruby spinel
D)sapphire
20
Where do most useful minerals occur in nature?
A)in ores
B)in volcanoes
C)in seawater
D)in freshwater
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