Rocks and Minerals Test E

How light is reflected off a mineral

• streak

• luster

Minerals can form from other minerals when exposed to

• heat & pressure

• extreme cold

This mineral is used to make glass

• quartz

• calcite

This yellow mineral is used in cleaning products

• pyrite

• sulfur

The following image shows what mineral property?

• Hardness

• Cleavage

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1

• 10

The definition of a mineral does NOT include:

• crystalline structure
• solid
• organic
• natural

Which test is not reliable in identifying minerals

• streak
• luster
• specific gravity
• color

Breakage along smooth, flat planes

• fracture

• cleavage

Breakage along rough or jagged edges

• cleavage

• fracture