gemstone

Green cabochon gemstone, likely aventurine or jade

Indeterminate from the image; possible green quartzite (aventurine) or jadeite/nephrite

AI-generated identification · may be incorrect

Opaque to translucent dark-green cabochon in a metal setting; hardness and crystal structure cannot be determined visually. Aventurine is quartz-rich (Mohs 6.5–7); jade is tougher, with jadeite at 6.5–7 and nephrite at 6–6.5.

Identified October 12, 2026More gemstone →

Explore Green cabochon gemstone, likely aventurine or jade in the encyclopedia →

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Physical properties

Formation & geological history

If aventurine, it formed through quartz-rich metamorphic processes; jade forms in high-pressure metamorphic environments. The image does not allow a reliable geological age or identification.

Uses & applications

Cabochons are commonly used in jewelry; green quartzite and jade are also used for ornaments and carvings.

Geological facts

Color and polish alone cannot distinguish jade from green quartz, glass, or other imitations; gemological testing is needed.

Field identification & locations

The image shows a polished, oval green cabochon held in a prong setting. Check hardness, specific gravity, and microscopic texture to identify it; common sources include Brazil and India for aventurine, and Myanmar, Guatemala, and Canada for jade.