mineral

Diamond (Colorless/White)

Carbon (C)

Hardness: 10 (Mohs scale); Color: Colorless to faint yellow/brown; Luster: Adamantine (brilliant); Crystal structure: Isometric-Hexoctahedral; Cleavage: Perfect octahedral; Specific gravity: 3.51–3.53

Hardness: 10 (Mohs scale)
Color: Colorless to faint yellow/brown
Luster: Adamantine (brilliant)

Identified February 21, 2026More mineral →

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Physical properties

Formation & geological history

Formed under high-pressure, high-temperature conditions deep within the Earth's mantle (approx. 150-200km deep), typically brought to the surface via kimberlite volcanic eruptions. Most are 1 to 3.5 billion years old.

Uses & applications

Primary use in high-end jewelry (necklaces, rings); industrial uses include drill bits, cutting tools, and abrasives due to extreme hardness.

Geological facts

Diamond is the hardest natural substance known to man. It is a solid form of pure carbon with its atoms arranged in a crystal structure called diamond cubic.

Field identification & locations

Identify in the field by its extreme hardness (cannot be scratched by any other mineral) and high refraction (brilliance/fire). Commonly found in alluvial deposits or within kimberlite pipes in regions like South Africa, Russia, and Canada.