Mohs Scale

Diamond

A precious gemstone that is the hardest known natural material, scoring a 10 on the Mohs scale of mineral hardness.

Corundum

A mineral that is the second hardest on the Mohs scale, with a hardness rating of 9. It is commonly used as an abrasive and is the main component of rubies and sapphires.

Topaz

A mineral with a hardness rating of 8 on the Mohs scale. It is a popular gemstone and can come in a variety of colors, including blue, yellow, and pink.

Quartz

A mineral that has a hardness rating of 7 on the Mohs scale. It is one of the most abundant minerals on Earth and is commonly used in the production of glass and ceramics.

Feldspar

A group of minerals that have a hardness rating of 6 on the Mohs scale. They are commonly found in igneous, metamorphic, and sedimentary rocks and are used in the production of ceramics and glass.

Apatite

A mineral with a hardness rating of 5 on the Mohs scale. It is commonly found in phosphate rock and is used in the production of fertilizers and other industrial applications.

Fluorspar

A mineral that has a hardness rating of 4 on the Mohs scale. It is commonly used in the production of hydrofluoric acid and is also used as a flux in steelmaking.

Calcite

A mineral with a hardness rating of 3 on the Mohs scale. It is a major component of limestone and marble and is commonly used in the production of cement and as a building stone.

Gypsum

A mineral that has a hardness rating of 2 on the Mohs scale. It is commonly used in the production of plaster and drywall.

Talc

A mineral with the lowest hardness rating of 1 on the Mohs scale. It is commonly used in the production of talcum powder and as a lubricant.