The color of a mineral in powder form is called?

• hardness
• specific gravity
• luster
• streak

How light reflects off of a mineral is called?

• 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
• None of the above

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

How do you test the hardness of a mineral? 

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

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

• luster
• color
• streak
• cleavage

True or false; Sugar is not a mineral

• True
• False

A naturally formed, inorganic solid with a crystalline structure 

• density
• streak
• mineral
• non silicate mineral

What mineral is used for pencils?

• Graphite
• Galena
• Magnetite
• Quartz