mineral

Polished pale-green stone, likely serpentine or jade

Serpentine-group mineral (commonly antigorite/lizardite), or possibly nephrite jade (tremolite–actinolite amphibole)

AI-generated identification · may be incorrect

Opaque cream-to-pale green, waxy to slightly greasy luster, smoothly polished and roughly cylindrical with faceted ends. Likely hardness 2.5–4 for serpentine or 6–6.5 for nephrite; specific gravity approximately 2.5–3.0.

Identified September 22, 2026More mineral →

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At a glance

Common name: Polished pale-green stone, likely serpentine or jade
Scientific name: Serpentine-group mineral (commonly antigorite/lizardite), or possibly nephrite jade (tremolite–actinolite amphibole)
Category: mineral
Identified: September 22, 2026
Method: Standard

AI Estimated Value

About $5–$30 for a small serpentine carving; approximately $30–$200 or more if confirmed as quality nephrite jade.

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

Serpentine forms when ultramafic mantle rocks hydrate during tectonic alteration; nephrite forms by metamorphic replacement in serpentinite-related zones. Exact age and identity cannot be determined from the photograph alone.

Uses & applications

Carved or polished serpentine is used for ornaments, beads, and lapidary items; genuine nephrite is used for jewelry and carvings. Common serpentine pieces typically have modest value.

Geological facts

The rounded, waxy appearance is consistent with serpentine, but color and shape alone cannot reliably distinguish it from jade, soapstone, or dyed stone.

Field identification & locations

Common sources include California, New Zealand, Italy, Russia, China, and Canada. Check hardness, heft, translucency, and a scratch test on an inconspicuous area; laboratory testing is needed for confident jade identification.