mineral

Diamond

Native Carbon (C)

Hardness: 10 (Mohs scale); Color: Colorless (in standard gems); Luster: Adamantine; Crystal Structure: Isometric-Hexoctahedral; Specific Gravity: 3.52

Hardness: 10 (Mohs scale)
Color: Colorless (in standard gems)
Luster: Adamantine

Identified June 28, 2026More mineral →

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Physical properties

Hardness: 10 (Mohs scale); Color: Colorless (in standard gems); Luster: Adamantine; Crystal Structure: Isometric-Hexoctahedral; Specific Gravity: 3.52

Formation & geological history

Formed under high pressure and temperature conditions in the Earth's mantle (150-200km deep) billions of years ago, then brought to the surface by kimberlite eruptions.

Uses & applications

Widely used in jewelry (rings, necklaces), industrial abrasives, cutting tools, and high-end electronics.

Geological facts

Diamonds are the hardest natural substance known on Earth. To have the clarity seen in this baguette and pavé ring setting, they must be meticulously cut and polished.

Field identification & locations

Identify by extreme hardness (can scratch all other minerals), high refractive index, and thermal conductivity. Commonly found in secondary alluvial deposits or primary kimberlite pipes.