Rock Identifier
Green beryl gemstone (likely emerald or green beryl) (Beryl, Be₃Al₂Si₆O₁₈; green color from chromium/vanadium or iron) — gemstone
gemstone

Green beryl gemstone (likely emerald or green beryl)

Beryl, Be₃Al₂Si₆O₁₈; green color from chromium/vanadium or iron

AI-generated identification · may be incorrect

A faceted, rectangular step-cut green transparent stone in a metal ring. Beryl has Mohs hardness 7.5–8, vitreous luster, hexagonal crystal structure, and poor basal cleavage; the photograph cannot confirm natural origin, clarity, or treatment.

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Physical properties

A faceted, rectangular step-cut green transparent stone in a metal ring. Beryl has Mohs hardness 7.5–8, vitreous luster, hexagonal crystal structure, and poor basal cleavage; the photograph cannot confirm natural origin, clarity, or treatment.

Formation & geological history

Forms mainly in granitic pegmatites and hydrothermal veins, typically in metamorphic or igneous environments. The green variety may be emerald, but color alone is insufficient; emerald deposits are geologically much rarer than ordinary green beryl.

Uses & applications

Used in jewelry; emerald-quality stones can be valuable, while commercial green beryl is generally modestly priced. The surrounding purple stone appears to be a separate gemstone, possibly amethyst or synthetic material.

Geological facts

The stone is mounted and cut, so field tests are unavailable. Emerald identification requires inclusions, refractive index, specific gravity, and ideally laboratory spectroscopy; glass and synthetic emerald are common imitations.

Field identification & locations

Common emerald sources include Colombia, Zambia, Brazil, and Afghanistan; ordinary beryl occurs worldwide. The reported Bihar location is not a well-known emerald-producing area, so a locally found natural emerald is unlikely; the jewelry setting may indicate a purchased stone.