mineral
Beryl (Emerald Variety)
Beryllium aluminum silicate (Be3Al2(SiO3)6)
AI-generated identification · may be incorrectHardness: 7.5-8.0, Color: Green (due to chromium/vanadium), Luster: Vitreous to resinous, Crystal Structure: Hexagonal, Cleavage: Indistinct, Specific Gravity: 2.67-2.78
- Hardness
- 7
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Physical properties
Hardness: 7.5-8.0, Color: Green (due to chromium/vanadium), Luster: Vitreous to resinous, Crystal Structure: Hexagonal, Cleavage: Indistinct, Specific Gravity: 2.67-2.78
Formation & geological history
Typically forms in hydrothermal veins or granitic pegmatites. This specimen shows a common opaque, hex-prismatic habit often found in metamorphic schist environments.
Uses & applications
Lower-grade opaque specimens used for mineral collecting and lapidary practice. High-grade transparent crystals used in fine jewelry.
Geological facts
Emeralds are the most famous green gemstone; even though they are technically beryl, they contain traces of chromium that give them their distinct hue. Historically prized by Egyptian and Incan civilizations.
Field identification & locations
Identify by its hexagonal (six-sided) crystal cross-section, distinct green color, and high hardness. Commonly found in Colombia, Brazil, and Russia.
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