mineral

Aquamarine

Beryl (Be3Al2Si6O18)

AI-generated identification · may be incorrect

Hardness: 7.5-8.0 (Mohs scale); Color: Pale blue to light green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal/Trigonal; Cleavage: Imperfect; Specific Gravity: 2.63-2.80

Hardness: 7
Color: Pale blue to light green
Luster: Vitreous (glassy)

Identified May 20, 2026More mineral →

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Physical properties

Hardness: 7.5-8.0 (Mohs scale); Color: Pale blue to light green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal/Trigonal; Cleavage: Imperfect; Specific Gravity: 2.63-2.80

Formation & geological history

Formed in granitic pegmatites and metamorphic rocks through hydrothermal processes involving beryllium-rich fluids. Found in age-variable deposits ranging from Precambrian to Cenozoic.

Uses & applications

Primarily used as a gemstone in high-end jewelry; industrial use as a source of beryllium for aerospace and electronics.

Geological facts

The name comes from the Latin 'aqua marina' meaning water of the sea. It is the birthstone for March and was traditionally believed to protect sailors at sea.

Field identification & locations

Identify by its hardness (scratches glass/quartz), hexagonal crystal habit, and distinct vitreous luster. Commonly found in Brazil, Pakistan, Nigeria, and Madagascar.