Geology Chapter 5 Minerals of Earth's Crust

All of the following are characteristics that must be met in order for a substance to be classified as a mineral, except

• naturally occurring

• organic

• crystalline solid

• definite chemical composition

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

Tags

NGSS.MS-PS4-2

A mineral's resistance to being scratched is called?

• streak
• luster
• hardness
• heft

Breakage along smooth, flat planes

• fracture
• cleavage
• streak
• ore

Breakage along rough or jagged edges

• cleavage
• fracture
• streak
• luster

Metallic and nonmetallic are two examples of the physical property _______________.

• streak
• color
• luster
• cleavage

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

• Fracture
• Cleavage
• Glassy
• Waxy

Tags

NGSS.MS-PS1-1

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

Which of these minerals is softer than a copper penny?

• Topaz

• Corundum

• Calcite

• Orthoclase