mineral

Aquamarine

Beryl (Be₃Al₂Si‑₆O₁‑₈)

Hardness: 7.5 to 8.0 on the Mohs scale. Color: Pale blue to light green. Luster: Vitreous (glassy). Crystal Structure: Hexagonal. Specific Gravity: 2.66 to 2.80.

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

Identified July 5, 2026More mineral →

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Physical properties

Hardness: 7.5 to 8.0 on the Mohs scale. Color: Pale blue to light green. Luster: Vitreous (glassy). Crystal Structure: Hexagonal. Specific Gravity: 2.66 to 2.80.

Formation & geological history

Formed in granitic pegmatites where hydrothermal veins and igneous activities allow for the growth of large, clear crystals. Found largely in deposits from the Cenozoic era and older.

Uses & applications

Primarily used as a gemstone in high-end jewelry and for mineral collecting. Beryl is also an ore for beryllium, used in aerospace and electronics.

Geological facts

The name comes from the Latin 'aqua marina', meaning sea water. Sailors once wore aquamarine amulets to protect them against the dangers of the ocean.

Field identification & locations

Identify by its characteristic pale blue color, high hardness (will scratch glass), and hexagonal crystal habit. Common locations include Brazil, Madagascar, Nigeria, and Pakistan.