Rock Identifier
Green cabochon ring stone (likely dyed jade, aventurine, or glass imitation) (Undetermined; possible nephrite jade (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), jadeite (NaAlSi₂O₆), or green aventurine quartz) — gemstone
gemstone

Green cabochon ring stone (likely dyed jade, aventurine, or glass imitation)

Undetermined; possible nephrite jade (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂), jadeite (NaAlSi₂O₆), or green aventurine quartz

AI-generated identification · may be incorrect

The image shows a polished opaque green, cabochon-like insert in a metal ring. Its hardness, luster, cleavage, and specific gravity cannot be reliably measured visually; the smooth saturated color and setting also permit dyed stone or glass imitation.

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Physical properties

The image shows a polished opaque green, cabochon-like insert in a metal ring. Its hardness, luster, cleavage, and specific gravity cannot be reliably measured visually; the smooth saturated color and setting also permit dyed stone or glass imitation.

Formation & geological history

If jade, it formed through metamorphic or hydrothermal processes, generally in tectonic zones; jadeite commonly forms in subduction-related rocks, while nephrite forms in metamorphosed ultramafic settings. The ring itself is human-processed, and geological age is indeterminate.

Uses & applications

Used primarily in jewelry and ornament. Genuine jade can be valuable, while aventurine and imitation materials are inexpensive.

Geological facts

A magnifier may reveal granular sparkle in aventurine, fibrous texture in nephrite, or bubbles/flow lines in glass. Color alone cannot distinguish these materials.

Field identification & locations

Possible regional sources near 14.7°N, 77.6°E include common quartz-rich decorative stones, but the specimen’s origin cannot be established from the photograph. Test hardness only on an inconspicuous area: quartz scratches glass, while jade generally does not.