Understanding Mohs Scale of Mineral Hardness

Who developed the Mohs Scale of Mineral Hardness?

• Albert Einstein

• Frederick Mohs

• Marie Curie

• Isaac Newton

Which mineral is the hardest on the Mohs Scale?

• Corundum

• Diamond

• Topaz

• Quartz

What can scratch a mineral with a hardness of 4 on the Mohs Scale?

• Glass

• Copper coin

• Steel file

• Fingernail

Which mineral can be scratched by a steel nail?

• Gypsum

• Apatite

• Quartz

• Feldspar

Besides hardness, which property is NOT mentioned as useful for identifying minerals?

• Cleavage

• Weight

• Color

• Texture