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, and perfect octahedral cleavage.

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Physical properties

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

Formation & geological history

Formed under high temperature and extreme pressure conditions in Earth's mantle, typically at depths of 150 to 250 kilometers, and brought to the surface via kimberlite pipes.

Uses & applications

Widely used in fine jewelry, cutting tools, industrial abrasives, and high-precision scientific equipment.

Geological facts

Diamonds are the hardest known natural substance on Earth and form billions of years before being mined.

Field identification & locations

Identified by extreme hardness that scratches all other minerals, high thermal conductivity, and brilliant dispersion of light; found globally in countries like Russia, Botswana, and Canada.