mineral

Aquamarine (Beryl)

Beryl (Be3Al2Si6O18 with Fe impurities)

AI-generated identification · may be incorrect

Hardness: 7.5-8.0; Color: Pale blue to deep cyan; Luster: Vitreous; Crystal Structure: Hexagonal; Cleavage: Imperfect/Poor; Specific Gravity: 2.66-2.80

Hardness: 7
Color: Pale blue to deep cyan
Luster: Vitreous

Identified June 28, 2026More mineral →

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Physical properties

Hardness: 7.5-8.0; Color: Pale blue to deep cyan; Luster: Vitreous; Crystal Structure: Hexagonal; Cleavage: Imperfect/Poor; Specific Gravity: 2.66-2.80

Formation & geological history

Found primarily in granitic pegmatites and hydrothermal veins. They form as magma cools and leaves behind fluid-rich cavities where large crystals can grow over millions of years.

Uses & applications

Primarily used in fine jewelry as a gemstone and highly valued by mineral collectors for its crystal form.

Geological facts

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

Field identification & locations

Identify by its characteristic hexagonal prism shape, lightness of color, and high hardness which prevents scratching. Major sources include Brazil, Pakistan, and Madagascar.