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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

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

Identified More mineral →
Explore Diamond in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

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

Formation & geological history

Formed under extreme pressure and high temperature in the Earth's mantle, brought to the surface via deep-seated kimberlite or lamproite volcanic eruptions.

Uses & applications

Widely utilized in fine jewelry and gemstones, as well as industrial cutting, drilling, and polishing tools due to extreme hardness.

Geological facts

Diamonds are the hardest known natural substance on Earth and form deep underground over billions of years.

Field identification & locations

Identified by extreme hardness, high refractive index, and adamantine luster. Found globally in alluvial deposits and kimberlite pipes, including Southern Africa.