metamorphic

Serpentine (Infinite Stone)

Serpentinite (Hydrous magnesium iron silicate)

AI-generated identification · may be incorrect

Hardness: 3-6 Mohs. Color: pale yellowish-green to olive. Luster: waxy or greasy. Crystal structure: Monoclinic, but usually massive. Specific gravity: 2.5-3.2.

Hardness: 3-6 Mohs
Color: pale yellowish-green to olive
Luster: waxy or greasy

Identified July 9, 2026More metamorphic →

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Physical properties

Hardness: 3-6 Mohs. Color: pale yellowish-green to olive. Luster: waxy or greasy. Crystal structure: Monoclinic, but usually massive. Specific gravity: 2.5-3.2.

Formation & geological history

Formed via serpentinization, a low-temperature metamorphic process where ultramafic rocks from the Earth's mantle are hydrated by hydrothermal fluids.

Uses & applications

Used for carvings, decorative architectural stone, tumbling for metaphysical use (marketed as 'Infinite Stone'), and historically as a source of asbestos.

Geological facts

The name 'Serpentine' comes from the Latin 'serpentinus', meaning 'serpent rock,' because its green color and mottled texture resemble the scales of a snake.

Field identification & locations

Identified by its distinctive greasy feel, pale green color, and relative softness compared to nephrite jade. Commonly found in South Africa and metamorphic belts worldwide.