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

A mineral's resistance to being scratched is called its -

• streak

• luster

• hardness

• heft

Which test is not reliable in identifying minerals

• streak
• luster
• specific gravity
• color

Breakage along smooth, flat planes is referred to as what?

• fracture

• cleavage

• streak

• ore

Breakage along rough or jagged edges is referred to as what?

• cleavage

• fracture

• streak

• luster

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

• Fracture
• Cleavage
• Glassy
• Waxy

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

Tags

NGSS.MS-PS1-1

Which of these minerals is softer than glass?

• Topaz 
• Corundum 
• Calcite 
• Orthoclase 

The definition of a mineral does NOT include:

• crystalline structure
• solid
• organic
• natural