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20 questions
What state of matter are all minerals?
Solid
Liquid
Gas
What is a mineral's hardness?
It describes the mineral's resistance to scratching.
It describes the way the mineral breaks into pieces.
It describes the way a mineral reflects light.
Select ALL the tools that could be used to test a mineral's hardness:
your finger
your fingernail
a penny
a nail
This property is NOT very useful in identifying a mineral:
Color
Luster
Hardness
Streak
This property describes a mineral's resistance to scratching:
Hardness
Luster
Cleavage
Streak
This property describes the way a mineral reflects light:
Luster
Hardness
Cleavage
Streak
The property of a mineral that describes the way it breaks into flat surfaces:
Cleavage
Hardness
Luster
Streak
What is a streak test?
A test that shows a mineral's true color.
A test that shows a mineral's hardness.
A test that shows a mineral's luster.
A test that shows how a mineral breaks.
This property is measured on a scale of 1 to 10:
Hardness
Luster
Cleavage
Streak
True or false: All minerals have the same streak color.
True
False
When measuring on the Mohs scale of 1 to 10, _______ is the softest.
1
10
"Shiny, dull, metallic, glassy, waxy" all describe a mineral's property of __________.
Luster
Color
Streak
Hardness
These 2 properties of a mineral must be tested in order to be observed. One uses a nail and another uses a special plate. (CHOOSE 2)
Hardness
Streak
Color
Luster
To test this property of a mineral, you could shine a light on the rock to see how the light reflects.
Luster
Hardness
Cleavage
Fracture
What is a mineral?
an element
a rock formed from something that was once living
a naturally formed solid substance with a crystal structure
"Cleavage" describes the way a mineral:
breaks
shines
sparkles
resists scratching
If you find a mineral, and you can scratch it with a fingernail, but not a copper coin, it must have a hardness of:
1
2
3
2.5
If you find a mineral and you can scratch it with a steel nail, it must have a hardness of:
3
4
5
True or False: the streak a mineral leaves is always the same color as the mineral itself.
True
False
The main 2 groups to sort a mineral's luster are:
metallic or nonmetallic
shiny or dull
glassy or waxy
dark or light
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