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WorksheetsIdentifying Minerals
Total questions: 25
Worksheet time: 2hrs 5mins
Name
Class
Date
1.
The way a surface (of a mineral) reflect light. Either metallic or nonmetallic:
a)
Cleavage
b)
Streak
c)
Luster
d)
Reflection
2.
Many minerals form from the cooling of magma. If the magma cools slowly, what size are the crystals?
a)
small
b)
large
c)
no crystals
3.
____________ is determined by scratching a mineral with other minerals.
a)
fracture
b)
hardness
c)
streak
d)
color
4.
The tendency for a mineral to split along specific planes of weakness to form, smooth flat surfaces.
a)
Cleavage
b)
Fracture
c)
Crystallization
d)
Fracture
5.
The color of the powdered form of a mineral found by rubbing a mineral against a white tile.
a)
Luster
b)
Cleavage
c)
Streak
d)
Fracture
6.
The color of the powdered form of a mineral found by rubbing a mineral against a white tile.
a)
Luster
b)
Cleavage
c)
Streak
d)
Fracture
7.
Which of the following is NOT a characteristic of a mineral?
a)
streak
b)
crystal structure
c)
inorganic
d)
chemical composition
8.
Quartz, feldspar and Mica are silicate minerals. Silicate minerals contain atoms of silicon and oxygen and often other elements bonded together. What must be true of silicate minerals?
a)
They are pure elements
b)
They are made up of compounds
c)
They melt at very low temperatures
d)
They are made up of only one kind of atom
9.
What is the scale that is used to indicate hardness of a mineral?
a)
Red Scale
b)
Moh's scale
c)
Einstein Scale
d)
Fracture Scale
10.
Which of the following must be true for a substance to be considered a mineral?
a)
It must be organic
b)
It must be glassy
c)
It must be a gem
d)
It must be naturally occurring
11.
A substance that keeps its shape because its particles can’t flow freely?
a)
Crystal
b)
solid
c)
liquid
d)
inorganic
12.
The softest minerals is__________
a)
Quartz
b)
Topaz
c)
Talc
d)
Amethyst
13.
An example of a mineral that is also an element in pure form:
a)
Water
b)
Salt
c)
Gold
14.
If a mineral does not break smoothly, and leaves an uneven surface:
a)
cleavage
b)
fracture
c)
hardness
d)
inorganic
15.
The color of a mineral's powder is its_______
a)
hardness
b)
streak
c)
color
d)
luster
16.
A mine that starts near the surface and extend deep underground using giant earth moving equipment to dig a tremendous pit and remove ore deposits is ___
a)
shaft mine
b)
open pit mine
c)
strip mine
d)
gold mind
17.
A rock that contains a metal or economically useful mineral is a(n)
a)
gem
b)
gemstone
c)
ore
d)
smelt
18.
A solid mixture of two or more metals.
a)
ore
b)
alloy
c)
gem
d)
gemstone
19.
A gemstone that has been cut and polished
a)
gem
b)
gemstone
c)
alloy
d)
ore
20.
A hard, colorful mineral that has a brilliant or glassy luster
a)
gem
b)
gemstone
c)
alloy
d)
ore
21.
A mixture in which one substance dissolves in another
a)
solution
b)
compound
c)
element
d)
crystallization
22.
Magma that reaches the surface
a)
lava
b)
magma
c)
volcano
d)
water
23.
Molten material from the mantle that hardens to form rocks
a)
lava
b)
magma
c)
solution
d)
crystals
24.
The process by which atoms are arranged to form a material with a crystal structure
a)
crystallization
b)
compound
c)
element
d)
solution
25.
You are in California playing around in a stream when you come across a substance that appears to be gold. Which test would be the most inaccurate in determining if it is gold?
a)
color
b)
streak
c)
hardness
d)
density
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