Rock Identifier
Aquamarine (Beryl (Be3Al2Si6O18)) — gemstone
gemstone

Aquamarine

Beryl (Be3Al2Si6O18)

AI-generated identification · may be incorrect

Hardness of 7.5 to 8 on the Mohs scale, pale blue to light green color, vitreous luster, hexagonal crystal system, and poor basal cleavage.

Identified More gemstone →
Explore Aquamarine in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness of 7.5 to 8 on the Mohs scale, pale blue to light green color, vitreous luster, hexagonal crystal system, and poor basal cleavage.

Formation & geological history

Forms primarily in pegmatites and metamorphic rocks through hydrothermal processes involving beryllium-rich magma interactions.

Uses & applications

Widely used as a precious gemstone in jewelry, rings, and pendants, as well as valued by mineral collectors.

Geological facts

Aquamarine is the blue variety of beryl and gets its name from the Latin word for seawater. The largest gem-quality aquamarine was found in Brazil in 1910.

Field identification & locations

Identified by its distinctive pale blue-green color and high hardness. Commonly sourced from Brazil, Pakistan, Madagascar, and the USA.