Rock Identifier
Diamond (or diamond simulant) (C) — gemstone
gemstone

Diamond (or diamond simulant)

C

Hardness: 10 (if diamond) or lower (if simulant like cubic zirconia or glass). Color: Colorless. Luster: Adamantine. Crystal Structure: Isometric.

Color
Colorless
Luster
Adamantine
Identified More gemstone
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Physical properties

Hardness: 10 (if diamond) or lower (if simulant like cubic zirconia or glass). Color: Colorless. Luster: Adamantine. Crystal Structure: Isometric.

Formation & geological history

Formed under high pressure and temperature deep within the Earth's mantle, brought to the surface via kimberlite or lamproite pipes.

Uses & applications

Used in jewelry, cutting tools, and industrial applications.

Geological facts

Diamond is the hardest known natural material. It has very high thermal conductivity.

Field identification & locations

Identify by its extreme hardness, high refractive index, and strong dispersion. Often requires gemological testing to differentiate from simulants like CZ or moissanite.