mineral

Green beryl (likely aquamarine)

Beryl, Be₃Al₂Si₆O₁₈; blue-green varieties are called aquamarine

AI-generated identification · may be incorrect

Green, translucent-to-opaque crystal fragment with lengthwise striations and uneven fracture. Beryl has Mohs hardness 7.5–8, vitreous luster, and a hexagonal crystal structure; color alone cannot confirm the variety.

Identified October 12, 2026More mineral →

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Physical properties

Formation & geological history

Beryl crystallizes from silica-rich pegmatites and some hydrothermal veins, commonly during late-stage cooling of granitic magma. Its age depends on the deposit, often millions to billions of years.

Uses & applications

Transparent, clean material may be cut for jewelry; less gemmy beryl is collected or used as a mineral specimen. This fragment appears too included or fractured for high-value faceting.

Geological facts

Beryl’s colors arise from trace elements: iron produces aquamarine’s blue-green hues, while chromium or vanadium can produce emerald green.

Field identification & locations

Look for a hexagonal outline, lengthwise striations, glassy luster, and hardness greater than quartz; distinguish it from softer green minerals with testing. Beryl occurs in pegmatites worldwide, notably in Brazil, Madagascar, Pakistan, and the United States.