Front

Surface light reflection type: metallic or nonmetallic.

Back

Luster

Front

Determined by scratching a mineral with others.

Back

hardness

Front

Color of powdered mineral on white tile.

Back

Streak

Front

Scale indicating mineral hardness

Back

Moh's scale

Front

Naturally formed, inorganic solid with crystalline structure

Back

mineral

Front

Criteria for a mineral:

Back

Naturally occurring.

Front

Term for regular geometric shapes in minerals?

Back

crystal

Front

Mineral property shown here:

Back

streak

Front

Solid geometric form of a mineral from repeating atom patterns

Back

crystal

Front

Example of luster?

Back

Metallic