mineral

Rough beryl, possibly green beryl or aquamarine

Beryl, Be₃Al₂Si₆O₁₈

AI-generated identification · may be incorrect

Translucent blue-green to yellow-green, vitreous luster, hexagonal crystal structure; Mohs hardness 7.5–8, with indistinct cleavage. The pictured fragment appears naturally fractured; color alone cannot confirm gem quality or variety.

Identified October 8, 2026More mineral →

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Physical properties

Formation & geological history

Beryl crystallizes in granitic pegmatites and some metamorphic rocks as magma cools and concentrates beryllium; specimens can form across many geological ages.

Uses & applications

Gem-quality beryl is cut for jewelry; lower-grade material is collected, and beryl is an important source of beryllium for specialized alloys and technology.

Geological facts

Aquamarine is blue to blue-green beryl, while emerald is chromium- or vanadium-colored beryl; greenish pieces may be called green beryl rather than emerald.

Field identification & locations

Look for glassy translucence and, on intact crystals, a six-sided prismatic shape; common sources include Brazil, Madagascar, Nigeria, and Afghanistan. The image does not show enough crystal form to determine the variety confidently.