Identifying Minerals

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

A mineral's resistance to being scratched is called?

• streak

• luster

• hardness

• heft

-the name of the scale used to determine a mineral's hardness.

• Miller's scale of hardness

• The Scale of Hardness

• Mohs scale of hardness

• Mineral Hardness Scale

Minerals are made of one or more

• minerals.

• sediments.

• elements.

• rocks.

Tags

NGSS.MS-PS1-1

The tendency of a mineral to break along smooth, flat surfaces.

• Cleavage

• Fracture

• Hardness

• Streak

The color of a mineral's powder form.

• Streak

• Hardness

• Magnetism

• Luster

A mineral can be scratched by gypsum (2) and quartz (7).

What is the hardness range?



• 1-2

• 2-7

• 2-10

• 7-10

A mineral could NOT be scratched by both calcite (3) and apatite (5).

What is the hardness range?

• 1-3

• 3-5

• 3-10

• 5-10

Minerals have a definite chemical composition.

• TRUE

• FALSE