Minerals

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

• luster
• streak
• cleavage
• fracture

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

• hardness
• specific gravity
• luster
• streak

Why is coal not a mineral?

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

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

• luster
• color
• streak
• cleavage

A naturally occurring, inorganic solid with a crystal structure and a definite chemical composition is referring to

• density
• streak
• mineral
• non silicate mineral

A mineral's resistance to being scratched is called?

• streak
• luster
• hardness
• heft

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

• Fracture
• Cleavage
• Glassy
• Waxy

Minerals are identified by observing their ___________.

• physical properties
• name
• location

__________ is if a mineral breaks apart in a jagged or rough layer.

• cleavage
• luster
• fracture

The ________ measures how hard a mineral is.

• Miller Scale
• Dishong Scale
• Curly Scale
• Mohs Scale