Minerals and Rocks

Hardness:

• It’s the ability of some minerals to break in geometric shapes

• It's the stripe colour of a mineral

• It's a measure of a mineral’s resistance to being scratched

• None of the answers is correct

The color of a mineral in powder form is called the mineral's 

• hardness
• specific gravity
• luster
• streak

How light reflects off of a mineral is called the mineral's 

• luster
• streak
• cleavage
• fracture

Tags

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Why is coal not a mineral?

• It's not a solid
• It is man-made
• It is not inorganic
• It is made of carbon

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

Tags

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By definition, a mineral has which of the following characteristic(s)?

• definite chemical composition
• crystal structure
• naturally occuring
• all of the above

Tags

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What mineral is the softest mineral on Moh's Hardness Scale and the main ingredient in baby powder?

• feldspar
• talc
• gypsum
• kaolinite

A rock which contains a useful mineral is call a/an

• gem
• quarry
• ore
• alloy

A mineral breaks into pieces like are shown in the picture. How would you describe its breakage?

• Fracture
• Cleavage
• Glassy
• Waxy

Tags

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The mineral in the picture has a ____________ luster.

• Nonmetallic
• Metallic
• Pearly
• Earthy