
mineral
Beryl (Aquamarine) in Matrix with Schorl
Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
Hardness: 7.5-8 (Beryl), 7 (Schorl); Color: Pale blue-green (Beryl) and Black (Schorl); Luster: Vitreous; Crystal Structure: Hexagonal; Cleavage: Imperfect/Basal
- Hardness
- 7
- Color
- Pale blue-green (Beryl) and Black (Schorl)
- Luster
- Vitreous
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Physical properties
Hardness: 7.5-8 (Beryl), 7 (Schorl); Color: Pale blue-green (Beryl) and Black (Schorl); Luster: Vitreous; Crystal Structure: Hexagonal; Cleavage: Imperfect/Basal
Formation & geological history
Formed in granitic pegmatites through hydrothermal activity and slow cooling of magma, often found in high-pressure metamorphic environments.
Uses & applications
Used primarily as gemstones (Aquamarine), as a source of beryllium for aerospace and electronics, and as high-demand collector mineral specimens.
Geological facts
Beryl is the primary source of the element Beryllium. The black tourmaline inclusions (Schorl) are often found alongside Beryl in Brazilian and Pakistani pegmatites.
Field identification & locations
Identify in the field by the hexagonal crystal habit and extreme hardness. Look for a glassy appearance and lack of reaction to acid. Common locations include Brazil, Pakistan, and the Ural Mountains.
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