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 in Earth's mantle, typically at depths of 150-250 kilometers, and brought to the surface via deep-source volcanic eruptions.

Uses & applications

Extensively used in fine jewelry, high-end timepieces, and industrial applications such as cutting, grinding, and drilling tools due to extreme hardness.

Geological facts

Diamond is the hardest naturally occurring substance on Earth and conducts heat four times better than copper.

Field identification & locations

Identified by its extreme hardness, high refractive index, and adamantine luster; commonly mined in Russia, Botswana, Canada, and South Africa.