mineral
Beryl (likely Emerald or Aquamarine in matrix)
Beryllium aluminum silicate (Be3Al2Si6O18)
AI-generated identification · may be incorrectHardness: 7.5-8 on Mohs scale; Color: Pale green to blue-green; Luster: Vitreous to pearly; Crystal structure: Hexagonal; Specific gravity: 2.63-2.90.
- Hardness
- 7
- Color
- Pale green to blue-green
- Luster
- Vitreous to pearly
Identified More mineral →
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Physical properties
Hardness: 7.5-8 on Mohs scale; Color: Pale green to blue-green; Luster: Vitreous to pearly; Crystal structure: Hexagonal; Specific gravity: 2.63-2.90.
Formation & geological history
Commonly forms in granitic pegmatites and metamorphic hydrothermal veins where beryllium is present. Often found within host rocks like schist or quartz.
Uses & applications
Primary source of beryllium metal used in aerospace and electronics; gem-quality specimens are highly prized for jewelry.
Geological facts
The green color in emerald is caused by trace amounts of chromium or vanadium, while the blue in aquamarine is caused by iron. It is one of the most important gemstone minerals.
Field identification & locations
Identify by its hexagonal crystal habit and extreme hardness. Often found in micaceous schists or pegmatite deposits in Brazil, Colombia, and the Ural Mountains.
