Rock Identifier
Diamond (set in jewelry) (Diamond (C)) — gemstone
gemstone

Diamond (set in jewelry)

Diamond (C)

AI-generated identification · may be incorrect

Hardness of 10 on the Mohs scale, adamantine luster, isometric/cubic crystal system, octahedral cleavage, and specific gravity around 3.52.

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Physical properties

Hardness of 10 on the Mohs scale, adamantine luster, isometric/cubic crystal system, octahedral cleavage, and specific gravity around 3.52.

Formation & geological history

Formed in Earth's mantle under extreme pressure and temperature, brought to the surface via volcanic eruptions through kimberlite and lamproite pipes.

Uses & applications

Predominantly faceted for high-end jewelry; industrial varieties are widely used in cutting, grinding, and drilling tools.

Geological facts

Diamond is the hardest known natural material and is composed entirely of pure carbon organized in a face-centered cubic lattice.

Field identification & locations

Identified by exceptional hardness, thermal conductivity, and intense dispersion (fire); commercially mined in Russia, Botswana, Canada, and Australia.