metamorphic

Likely serpentinite (serpentine-rich rock)

Serpentinite, composed mainly of serpentine-group minerals (e.g., antigorite, lizardite, or chrysotile)

AI-generated identification · may be incorrect

The image shows dark green, irregular patches in a lighter, weathered ground, but the specimen is too small and blurred for reliable mineral identification. Serpentinite is typically green to black, with a waxy or greasy luster and Mohs hardness about 2.5–5; mineral grains and cleavage vary by constituent.

Identified September 22, 2026More metamorphic →

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Physical properties

Formation & geological history

Forms when water chemically alters ultramafic rocks, commonly in oceanic crust or mantle rocks, during hydrothermal alteration or metamorphism. The image cannot establish the specimen’s age or confirm this origin.

Uses & applications

Serpentinite is used as decorative or dimension stone and, less commonly, for carving and landscaping; value depends on color, pattern, soundness, and polishability.

Geological facts

The reported location near Qom is in a region with varied sedimentary and igneous geology; the photograph does not show enough detail to verify a local match or distinguish serpentinite from other dark-green rocks.

Field identification & locations

A close, sharply focused view of the rock is needed. Check for a smooth waxy feel, mottled green color, and relatively low hardness; field tests or mineral analysis are needed for confirmation.