Mohs Hardness Scale Flashcard

Front

What is the Mohs Hardness Scale?

Back

A scale that ranks minerals based on their ability to scratch one another, ranging 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

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

Back

It means that the first mineral is harder than the second mineral according to the Mohs Hardness Scale.

Front

Which mineral can scratch quartz?

Back

Topaz can scratch quartz.

Front

What is the significance of the Mohs Hardness Scale in geology?

Back

It helps geologists identify minerals and understand their properties.

Front

What mineral can scratch fluorite but not orthoclase?

Back

Apatite can scratch fluorite but not orthoclase.

Front

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

Back

Quartz has a hardness of 7.

Front

Which mineral is softer than gypsum?

Back

Talc is softer than gypsum.

Front

What tool is commonly used to test the hardness of minerals?

Back

A scratch test is commonly used to determine the hardness of minerals.