gemstone

Likely polished green cabochon

Indeterminate from image; possibly green aventurine, chrysoprase, jade, or dyed chalcedony

AI-generated identification · may be incorrect

Small, rounded cabochon with dark green color, translucent edges, and vitreous-to-waxy luster; hardness could range from about 6.5–7 (aventurine/chalcedony) to 6–7 (jade). No crystal structure, cleavage, or density can be reliably determined visually.

Identified September 7, 2026More gemstone →

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Physical properties

Formation & geological history

If aventurine or chalcedony, it formed from silica-rich fluids in cavities or fractures; jade forms through metamorphism in subduction-zone rocks. Geological ages vary widely by deposit.

Uses & applications

Used for jewelry, beads, carvings, and ornamental cabochons; value depends strongly on identity, color, translucency, treatment, and size.

Geological facts

The smooth domed shape is a cabochon cut, not a natural crystal form. Bright reflections and uniform color may indicate polishing or possible dyeing.

Field identification & locations

Identify with hardness, specific-gravity, refractive-index, and microscopic tests; jade and chrysoprase should not be distinguished by appearance alone. Common sources include Brazil, India, Australia, Russia, Myanmar, and Central America, depending on material.