mineral

Diamond (in a metal ring setting)

Diamond (Pure Carbon, C)

Hardness: 10 (Mohs scale); Color: colorless to faint yellow (in this specimen); Luster: Adamantine; Crystal structure: Isometric-Hexoctahedral; Specific Gravity: 3.51-3.53.

Hardness: 10 (Mohs scale)
Color: colorless to faint yellow (in this specimen)
Luster: Adamantine

Identified March 8, 2026More mineral →

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Physical properties

Hardness: 10 (Mohs scale); Color: colorless to faint yellow (in this specimen); Luster: Adamantine; Crystal structure: Isometric-Hexoctahedral; Specific Gravity: 3.51-3.53.

Formation & geological history

Formed deep within the Earth's mantle under high pressure and temperature over billions of years, transported to the surface via kimberlite or lamproite volcanic eruptions.

Uses & applications

Primary use in jewelry (engagement/wedding rings) and industrial applications for cutting, drilling, and grinding due to its extreme hardness.

Geological facts

Diamonds are the hardest natural substance on Earth. While they are often associated with love, they were historically used as powerful talismans in battle.

Field identification & locations

Identify by its high refractive index (brilliance), ability to scratch any other mineral, and thermal conductivity. Found primarily in South Africa, Russia, Canada, and Australia.

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