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 greenish-blue color, vitreous luster, hexagonal crystal system, and specific gravity of 2.68 to 2.74.

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 greenish-blue color, vitreous luster, hexagonal crystal system, and specific gravity of 2.68 to 2.74.

Formation & geological history

Forms primarily within pegmatites and hydrothermal veins as magma cools slowly, often found in cavities associated with granitic rocks.

Uses & applications

Extensively used in fine jewelry, rings, necklaces, and as a prized specimen for mineral collectors.

Geological facts

Aquamarine is the pale blue variety of beryl, sharing its mineral family with emerald and morganite. The name derives from the Latin for seawater.

Field identification & locations

Easily identified by its distinctive light blue color and high hardness. Commonly sourced from Brazil, Madagascar, and Pakistan.