gemstone

Likely green aventurine or nephrite jade ring

Aventurine quartz (SiO₂) or nephrite, a variety of tremolite–actinolite amphibole

AI-generated identification · may be incorrect

The small polished olive-green cabochon has a vitreous-to-waxy luster and appears translucent; aventurine is Mohs 6.5–7, while nephrite is 6–6.5 and tough, with no obvious cleavage. Exact identification requires testing for inclusions, hardness, refractive index, and specific gravity.

Identified September 14, 2026More gemstone →

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At a glance

Common name: Likely green aventurine or nephrite jade ring
Scientific name: Aventurine quartz (SiO₂) or nephrite, a variety of tremolite–actinolite amphibole
Category: gemstone
Identified: September 14, 2026
Method: Standard

AI Estimated Value

Approximately $20–$150 for a comparable handmade ring; higher values are possible if confirmed as quality jade or precious-metal jewelry.

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 in quartz-rich metamorphic or hydrothermal settings, colored by fuchsite mica; nephrite forms through metamorphism and metasomatism of ultramafic or dolomitic rocks. Both are geologically ancient, commonly Paleozoic or older depending on locality.

Uses & applications

Used as a cabochon in jewelry and for decorative objects; the surrounding material appears to be silver-colored metal. Value is mainly determined by stone quality, craftsmanship, and metal content.

Geological facts

Aventurine may show subtle glitter from mica inclusions, whereas nephrite has a fibrous, greasy-looking texture and exceptional toughness.

Field identification & locations

Common sources include India, Brazil, Russia, China, New Zealand, Canada, and the United States. A gemological loupe, scratch test on an inconspicuous area, and specific-gravity or refractive-index measurement can distinguish candidates.