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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

Hardness of 10 on the Mohs scale, transparent to opaque, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51.

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Physical properties

Hardness of 10 on the Mohs scale, transparent to opaque, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51.

Formation & geological history

Formed deep within the Earth's mantle under extreme pressure and temperature conditions, typically over 1 to 3 billion years ago, and brought to the surface via kimberlite pipes.

Uses & applications

Extensively used in high-end fine jewelry and engagement rings, as well as industrial cutting, grinding, and drilling tools due to extreme hardness.

Geological facts

Diamond is the hardest known natural material on Earth and conducts heat exceptionally well.

Field identification & locations

Identified by its supreme hardness, high refractive index, and thermal conductivity; commonly mined in Russia, Botswana, Canada, and South Africa.