minerals

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

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

What mineral is used for pencils?

• Graphite
• Galena
• Magnetite
• Quartz

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

• feldspar
• talc
• gypsum
• kaolinite

The manner in which a mineral breaks along curved or irregular surfaces

• streak

• cleavage

• fracture

The splitting of a mineral along smooth, flat surfaces

• fracture

• cleavage

• hardness

This mineral has a cubic shape

• halite
• pyrite
• quartz
• sulfur

This mineral is used to make glass

• quartz
• calcite
• hematite
• graphite