mineral
Aquamarine
Beryl (Be3Al2Si6O18)
Hardness: 7.5-8 on Mohs scale; Color: Pale blue to light green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Indistinct; Specific Gravity: 2.66-2.80
- Hardness
- 7
- Color
- Pale blue to light green
- Luster
- Vitreous (glassy)
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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: Indistinct; Specific Gravity: 2.66-2.80
Formation & geological history
Formed in granitic pegmatites and metamorphic rocks through hydrothermal processes involving beryllium-rich fluids. Can be found in geological formations ranging from millions to billions of years old.
Uses & applications
Primarily used as a gemstone in jewelry (rings, necklaces, earrings) and as a highly sought-after mineral specimen for collectors.
Geological facts
The name is derived from the Latin 'aqua marina', meaning 'water of the sea'. Historically, sailors carried aquamarine to ensure safe passage and prevent seasickness.
Field identification & locations
Identify in the field by its distinct hexagonal crystal shape, hardness (it can scratch glass), and its blue-green translucency. Commonly found in Brazil, Pakistan, and the Ural Mountains of Russia.
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