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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

Hardness of 10 on the Mohs scale, colorless or tinted, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51-3.53.

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Physical properties

Hardness of 10 on the Mohs scale, colorless or tinted, adamantine luster, isometric crystal system, perfect octahedral cleavage, specific gravity of 3.51-3.53.

Formation & geological history

Formed deep within the Earth's mantle under extreme pressure and high temperatures, typically brought to the surface via kimberlite or lamproite volcanic pipes over billions of years.

Uses & applications

Extensively used in high-end jewelry and industrial cutting, drilling, and grinding tools due to its extreme hardness.

Geological facts

Diamond is the hardest naturally occurring substance on Earth and conducts heat exceptionally well.

Field identification & locations

Identified by its supreme hardness, high refractive index, and adamantine luster; found globally in major deposits across Africa, Russia, Canada, and Australia.