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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

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

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Physical properties

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

Formation & geological history

Formed under high pressure and temperature conditions in the Earth's mantle, typically 100-150 miles deep, over billions of years.

Uses & applications

Used primarily in fine jewelry and various industrial cutting, grinding, and drilling applications due to extreme hardness.

Geological facts

Diamonds are the hardest known natural material on Earth and conduct heat exceptionally well.

Field identification & locations

Identified by extreme hardness that scratches all other minerals, high dispersion creating fire, and thermal conductivity testing; found globally in kimberlite pipes.