mineral

Likely aquamarine (blue-green beryl)

Beryl, Be₃Al₂Si₆O₁₈; aquamarine is its blue to green variety

AI-generated identification · may be incorrect

Pale blue-green, translucent and vitreous, with a rough, irregular fracture; beryl has hexagonal crystals, Mohs hardness 7.5–8, and specific gravity about 2.6–2.9. The photo alone cannot confirm the identification; similar-looking minerals include fluorite and calcite.

Identified October 9, 2026More mineral →

Explore Likely aquamarine (blue-green beryl) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Beryl crystallizes in pegmatites and some metamorphic rocks as silica-rich fluids cool; deposits range from ancient to geologically recent, depending on the host rock.

Uses & applications

Gem-quality material is cut for jewelry; rough or lower-grade beryl is collected as a mineral specimen.

Geological facts

Aquamarine’s color is generally associated with iron impurities in beryl. It is the same mineral species as emerald, but differs in color and trace-element chemistry.

Field identification & locations

Look for a glassy luster, pale blue-green color, and hardness sufficient to scratch glass; identification requires testing beyond appearance. Aquamarine occurs in Brazil, Madagascar, Pakistan, Afghanistan, and other pegmatite regions.