mineral

Tumbled dark-green stone, possibly jade or serpentine

Undetermined; candidates include jadeite (NaAlSi₂O₆), nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), or serpentine-group minerals

AI-generated identification · may be incorrect

Smooth, opaque, dark green with a subdued luster; the image does not allow reliable hardness, cleavage, or specific-gravity measurement. Jade and serpentine can look similar, so identification requires testing.

Identified September 29, 2026More mineral →

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At a glance

Common name: Tumbled dark-green stone, possibly jade or serpentine
Scientific name: Undetermined; candidates include jadeite (NaAlSi₂O₆), nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), or serpentine-group minerals
Category: mineral
Identified: September 29, 2026
Method: Standard

AI Estimated Value

About $1–$10 as an unidentified tumbled pebble; verified jade may be worth more depending on quality.

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 natural mineral or rock pebble shaped by tumbling or polishing. Its geological age and source cannot be determined from the photograph.

Uses & applications

Tumbled stones are commonly collected or used in crafts and jewelry; value depends strongly on confirmed material, quality, and size.

Geological facts

Nephrite and jadeite are distinct minerals, while “jade” commonly refers to either; serpentine is a frequent visual look-alike.

Field identification & locations

The rounded, polished form indicates processing, but color alone is not diagnostic. Check hardness and density or consult a gemologist; the pictured pebble is too small and indistinct for confident field identification.