Rock Identifier
Diamond (Carbon (C)) — gemstone
gemstone

Diamond

Carbon (C)

AI-generated identification · may be incorrect

Mohs hardness of 10, colorless to various hues, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51.

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Physical properties

Mohs hardness of 10, colorless to various hues, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51.

Formation & geological history

Formed under extreme pressure and high temperatures in the Earth's mantle, typically 100 to 150 miles deep, and brought to the surface via kimberlite or lamproite volcanic pipes over billions of years.

Uses & applications

Extensively used in high-end jewelry, industrial cutting, grinding tools, and precision machinery due to its supreme hardness.

Geological facts

Diamond is the hardest known natural material on Earth and is formed entirely of carbon atoms arranged in a crystal lattice.

Field identification & locations

Identified by its unmatched hardness, adamantine luster, and high thermal conductivity; commonly sourced from mines in Russia, Botswana, Canada, and South Africa.