Minerals Answers

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1
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Which correctly lists two characteristics of crystal faces that define crystal systems?

A
angle and number
B
number and color
C
size and hardness
D
size and angle
2
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What is one use of the mineral gypsum?

A
salt
B
baby powder
C
wallboard
D
lubricants
3

Which statement describes streak?

A
Streak refers to the way light is reflected by a mineral.
B
Streak is the least accurate way to identify minerals.
C
Streak is tested by scraping a mineral across a streak plate.
D
The color of the streak is the same as the color of the mineral.
4

Which is one way that minerals crystallize from materials dissolved in water?

A
from the air
B
from solutions that evaporate
C
from water solutions that are heated
D
from the soil
6

Which example describes a use for gemstones?

A
fabrics
B
plastics
C
drill bits
D
paper clips
7

How is a mineral of volcanic origin with large crystals most likely formed?

A
crystallization through evaporation of water
B
crystallization of molten material inside Earth
C
crystallization of molten material at Earth’s surface
D
crystallization through cooling of a hot water solution
8

Which phrase refers to the repeating pattern of a mineral’s particles?

A
solid structure
B
crystal structure
C
organic structure
D
inorganic structure
9

A mineral forms from water at the edge of a lake.Which statement best describes this mineral?

A
The mineral formed from lava.
B
The mineral formed through evaporation.
C
The mineral formed when hot water cooled.
D
The mineral crystallized from magma.
10

Which statement describes one feature of a mineral’s definite chemical composition?

A
It always occurs in pure form.
B
It always contains certain elements.
C
It cannot form from living or once-living materials.
D
It cannot contain atoms from more than one element.

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