metamorphic

Tumbled pale-green stone, possibly serpentine

Indeterminate; appearance is consistent with serpentine-rich rock (serpentine minerals, approximately Mg₃Si₂O₅(OH)₄)

AI-generated identification · may be incorrect

Smooth, rounded, pale green-gray, and weakly lustrous; serpentine has Mohs hardness about 2.5–5.5 and a monoclinic crystal structure. The photo does not show enough detail to confirm the material or its composition.

Identified September 23, 2026More metamorphic →

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At a glance

Common name: Tumbled pale-green stone, possibly serpentine
Scientific name: Indeterminate; appearance is consistent with serpentine-rich rock (serpentine minerals, approximately Mg₃Si₂O₅(OH)₄)
Category: metamorphic
Identified: September 23, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small common tumbled stone; identification and size could change the estimate.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

If serpentine, it formed when water altered magnesium-rich ultramafic rocks, commonly during metamorphism; such rocks range widely in age. This specimen appears polished or tumbled.

Uses & applications

Serpentine is used as ornamental stone, carvings, and decorative objects; this small polished piece may be a craft or collector specimen.

Geological facts

Many distinct minerals and rocks can look pale green when tumbled, so color alone cannot identify this specimen.

Field identification & locations

A hardness test, streak, translucency, and close inspection of texture would help distinguish serpentine from quartz, glass, or other materials. Serpentinite occurs in regions including California, Italy, and New Zealand.