gemstone

Polished brown-green stone, likely jade or serpentine

Undetermined; possible jadeite (NaAlSi₂O₆), nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), or serpentine-group mineral

AI-generated identification · may be incorrect

Smooth, opaque to slightly translucent olive-brown surface with a waxy luster. The photo alone cannot establish hardness, crystal structure, or specific gravity; jade is typically Mohs 6–7, while serpentine is about 2.5–5.5.

Identified October 14, 2026More gemstone →

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At a glance

Common name: Polished brown-green stone, likely jade or serpentine
Scientific name: Undetermined; possible jadeite (NaAlSi₂O₆), nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), or serpentine-group mineral
Category: gemstone
Identified: October 14, 2026
Method: Standard

AI Estimated Value

About $1–$30 if common serpentine or an unidentified polished stone; genuine jade value varies widely with material, quality, and size.

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

Likely a shaped and polished natural stone; jade forms through metamorphic processes, while serpentine commonly forms by alteration of ultramafic rocks. A specimen’s age and origin cannot be determined visually here.

Uses & applications

Decorative or personal-object carving; confirmed jade is also used in jewelry and sculpture.

Geological facts

Jade is a trade term for two distinct minerals—jadeite and nephrite—and can be difficult to distinguish from serpentine by appearance alone.

Field identification & locations

The rounded, polished shape and subdued color are not diagnostic. Identification requires tests such as refractive index, specific gravity, or laboratory analysis; common jade sources include Myanmar, China, Canada, and New Zealand.