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 deep blue-green color, vitreous luster, and hexagonal crystal system.

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Physical properties

Hardness of 7.5 to 8 on the Mohs scale, pale blue to deep blue-green color, vitreous luster, and hexagonal crystal system.

Formation & geological history

Formed in pegmatites and metamorphic rocks through hydrothermal processes, often found in cavities and veins.

Uses & applications

Extensively used as a precious gemstone in fine jewelry and collected as mineral specimens.

Geological facts

Aquamarine is the blue variety of beryl and derives its name from the Latin word for seawater.

Field identification & locations

Identified by its distinctive hexagonal prismatic crystal habit and pale blue coloration, commonly sourced from Brazil, Pakistan, and Madagascar.