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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

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

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Physical properties

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

Formation & geological history

Forms under high pressure and temperature conditions in the Earth's mantle, typically 100 to 150 miles deep, and is brought to the surface by kimberlite magmas.

Uses & applications

Widely used in fine 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 supreme hardness, high refractive index, and adamantine luster; commonly mined in Africa, Russia, and Canada.