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.

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Physical properties

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

Formation & geological history

Formed under extreme heat and pressure deep within the Earth's mantle and brought to the surface by deep-seated volcanic eruptions called kimberlite pipes.

Uses & applications

Widely used in high-end jewelry and various industrial cutting, grinding, and drilling applications due to its extreme hardness.

Geological facts

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

Field identification & locations

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