gemstone

Polished green gemstone cabochon, likely aventurine quartz or jade

Uncertain from image; possible quartzite containing fuchsite (green aventurine) or jadeite/nephrite

AI-generated identification · may be incorrect

Opaque to translucent green, smoothly polished cabochon with vitreous to waxy luster; likely Mohs 6.5–7 for aventurine or 6–6.5 for jade, with no visible cleavage. Rounded shape and surface reflections indicate a cut/polished specimen rather than a raw rock.

Identified September 20, 2026More gemstone →

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At a glance

Common name: Polished green gemstone cabochon, likely aventurine quartz or jade
Scientific name: Uncertain from image; possible quartzite containing fuchsite (green aventurine) or jadeite/nephrite
Category: gemstone
Identified: September 20, 2026
Method: Standard

AI Estimated Value

About $5–$30 for common aventurine cabochons; approximately $20–$500+ for genuine jade, depending strongly on species, color, translucency, treatment, and provenance.

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

Green aventurine forms when quartzite crystallizes with fuchsite mica; jadeite and nephrite form in metamorphic, high-pressure tectonic zones. Geological ages vary widely depending on locality.

Uses & applications

Used in jewelry, carvings, ornaments, and lapidary objects; jade-quality material can be highly valuable, while common aventurine is inexpensive.

Geological facts

Aventurine commonly shows shimmering aventurescence from mica inclusions, whereas jade is typically tougher and more waxy-looking. Color alone cannot reliably distinguish them.

Field identification & locations

Check translucency, sparkle, hardness, density, and refractive behavior; definitive identification requires a gemological test such as refractive index, specific gravity, or spectroscopy. Green aventurine is common in India, Brazil, Russia, and China; jade occurs notably in Myanmar, Guatemala, China, and New Zealand.