Moh's Hardness Scale

Front

What is Moh's Hardness Scale?

Back

A scale that ranks minerals based on their ability to scratch one another, from 1 (softest) to 10 (hardest).

Front

What is the softest mineral on Moh's Hardness Scale?

Back

Talc.

Front

What does it mean if a mineral can scratch another mineral?

Back

It means the first mineral is harder than the second mineral.

Front

What mineral can scratch Talc?

Back

Calcite.

Front

True or False: Bigger numbers on the Mohs Scale can scratch lower numbers.

Back

True.

Front

What mineral is ranked 3 on Moh's Hardness Scale?

Back

Calcite.

Front

What mineral is ranked 6 on Moh's Hardness Scale?

Back

Orthoclase.

Front

What mineral can scratch Apatite?

Back

Quartz.

Front

True or False: Diamond is the hardest mineral on Moh's Hardness Scale.

Back

True.

Front

If a mineral is scratched by another mineral, what can we say about its hardness?

Back

It is softer than the scratching mineral.