gemstone

Polished green gemstone, likely jade or aventurine

Indeterminate; possibilities include nephrite jade (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂) or green aventurine quartz (SiO₂)

AI-generated identification · may be incorrect

Small polished oval with olive-green color and vitreous-to-waxy luster; hardness approximately 6–6.5 (aventurine) or 6–6.5 (nephrite), with no visible cleavage. The smooth, highly rounded form indicates tumbling or cabochon polishing.

Identified August 30, 2026More gemstone →

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At a glance

Common name: Polished green gemstone, likely jade or aventurine
Scientific name: Indeterminate; possibilities include nephrite jade (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂) or green aventurine quartz (SiO₂)
Category: gemstone
Identified: August 30, 2026
Method: Standard

AI Estimated Value

About $1–$20 for a small common tumbled stone; $20–$200+ if confirmed as high-quality jade, depending on color, translucency, size, and treatment.

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

Nephrite forms through metamorphism and metasomatism in serpentinite-related rocks; aventurine forms in silica-rich veins or metamorphic rocks. Exact age and locality cannot be determined from the photograph.

Uses & applications

Used as a bead, cabochon, carving, or inexpensive jewelry and decorative stone. Jade-quality material can be valuable, while aventurine is commonly ornamental.

Geological facts

The image alone cannot reliably distinguish jade from aventurine, green chalcedony, or dyed material. Specific gravity, translucency, microscopic texture, and hardness testing are useful for identification.

Field identification & locations

Common sources include China, Myanmar, New Zealand, Russia, Brazil, India, and Zimbabwe, depending on material. Check for natural granular or fibrous texture, consistent color, and avoid relying on color alone.