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

Why is coal not a mineral?

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

The following image shows what mineral property?

• Hardness
• Streak
• Cleavage
• Density

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

Dull, silky, waxy, pearly, and earthy are terms that best describe which property of minerals?

• luster
• color
• streak
• cleavage

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

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

How do you test the hardness of a mineral? 

• Throw it against a wall
• Step on it
• Scratch Test
• Kick it until it breaks

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

• feldspar
• talc
• gypsum
• kaolinite

A mineral's resistance to being scratched is called?

• streak
• luster
• hardness
• heft