mineral

Aquamarine (Beryl)

Beryllium aluminum silicate (Be3Al2Si6O18)

AI-generated identification · may be incorrect

Hardness: 7.5-8 on Mohs scale; Color: Pale blue to light green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Imperfect; Specific Gravity: 2.63-2.80

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

Identified July 10, 2026More mineral →

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Physical properties

Hardness: 7.5-8 on Mohs scale; Color: Pale blue to light green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Imperfect; Specific Gravity: 2.63-2.80

Formation & geological history

Formed in pegmatites through hydrothermal processes where beryllium-rich fluids crystallize in granitic magma chambers during the final stages of cooling.

Uses & applications

Primary use as a gemstone in jewelry; also a source of beryllium used in aerospace and electronics industries.

Geological facts

The name comes from the Latin 'aqua marina', meaning sea water. It is the birthstone for March and is relatively abundant compared to its cousin, the emerald.

Field identification & locations

Identify by its pale blue/green hue, high hardness, and hexagonal prismatic crystal habits. Found in Brazil, Pakistan, and Madagascar. Collectors value clear, unfractured crystals.