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, which is the softest mineral.

Front

What mineral is ranked #10 on the Mohs Hardness Scale?

Back

Diamond, which is the hardest mineral.

Front

Can Quartz be scratched by Topaz?

Back

True, Topaz can scratch Quartz.

Front

Which mineral can scratch a Drill bit?

Back

Corundum.

Front

Is Talc the softest mineral on the Mohs Hardness Scale?

Back

True.

Front

Which mineral can scratch Fluorite?

Back

Apatite.

Front

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

Back

Topaz is ranked #8.

Front

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

Back

Quartz is ranked #7.

Front

Which mineral is harder: Gypsum or Calcite?

Back

Calcite is harder than Gypsum.