Rock Identifier
Green glass-like cabochon, likely synthetic glass or resin (Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin) — gemstone
gemstone

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

AI-generated identification · may be incorrect

Bright emerald-green color, transparent to translucent, vitreous luster, rounded cabochon shape, and no visible natural crystal faces or inclusions diagnostic of a mineral. Hardness cannot be determined from the image; glass is about 5–6 Mohs, while resin is typically 2–4.

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Physical properties

Bright emerald-green color, transparent to translucent, vitreous luster, rounded cabochon shape, and no visible natural crystal faces or inclusions diagnostic of a mineral. Hardness cannot be determined from the image; glass is about 5–6 Mohs, while resin is typically 2–4.

Formation & geological history

The smooth molded form and uniform appearance suggest a human-processed simulant rather than a natural geological specimen. If glass, it is manufactured by melting silica-rich materials; if resin, it is synthetic polymer.

Uses & applications

Used in costume jewelry, decorative crafts, and cabochon settings; it has little value unless testing confirms a natural gemstone.

Geological facts

The vivid green flash may result from internal bubbles, molded optical effects, or coating. A refractometer, hardness test, loupe examination, and UV response would help distinguish glass, resin, and gemstone.

Field identification & locations

Likely not a natural rock or mineral; natural emerald, chrysoprase, peridot, or tourmaline would show characteristic inclusions and crystal or fracture features. Commonly sold as inexpensive jewelry material.