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

Diamond

Carbon (C)

AI-generated identification · may be incorrect

Mohs hardness 10, typically colorless, adamantine luster, isometric crystal system.

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Physical properties

Mohs hardness 10, typically colorless, adamantine luster, isometric crystal system.

Formation & geological history

Formed under extreme heat and pressure in Earth's mantle, brought to the surface via kimberlite pipes.

Uses & applications

Used extensively in high-end jewelry and industrial cutting tools due to extreme hardness.

Geological facts

Diamond is the hardest known natural material on Earth and forms deep underground over billions of years.

Field identification & locations

Identified by extreme hardness, high refractive index, and thermal conductivity testing; mined in Africa, Russia, and Canada.