Mohs Hardness Scale

Front

What is the Mohs Hardness Scale?

Back

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

Front

What mineral is ranked 1 on the Mohs Hardness Scale?

Back

Talc.

Front

What mineral is ranked 10 on the Mohs Hardness Scale?

Back

Diamond.

Front

If a mineral can scratch Fluorite, what can we infer about its hardness?

Back

It is harder than Fluorite, which has a hardness of 4.

Front

What is the hardness of Quartz on the Mohs Hardness Scale?

Back

7.

Front

Which mineral can scratch Orthoclase?

Back

Quartz.

Front

What is the hardness of Calcite on the Mohs Hardness Scale?

Back

3.

Front

If a mineral can scratch Talc but is scratched by Calcite, what is its hardness?

Back

2.

Front

What is the hardness of Topaz on the Mohs Hardness Scale?

Back

8.

Front

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

Back

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