gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Hardness: 7.5-8.0; Color: Vibrant green to pale green; Luster: Vitreous; Crystal system: Hexagonal; Cleavage: Indistinct; Specific gravity: 2.67-2.78
- Hardness
- 7
- Color
- Vibrant green to pale green
- Luster
- Vitreous
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Physical properties
Hardness: 7.5-8.0; Color: Vibrant green to pale green; Luster: Vitreous; Crystal system: Hexagonal; Cleavage: Indistinct; Specific gravity: 2.67-2.78
Formation & geological history
Formed in hydrothermal veins or pegmatites where beryllium and chromium/vanadium meet. Primarily found in metamorphic host rocks like schist or sedimentary deposits like limestone.
Uses & applications
High-value gemstone for jewelry, mineral specimen for collectors, and historically used for optical devices.
Geological facts
Emeralds are one of the 'Big Four' precious stones. Flawless natural emeralds are extremely rare and often more valuable than diamonds of equal weight.
Field identification & locations
Identify by its distinctive six-sided hexagonal prism shape and its deep green color. Commonly found in Colombia, Brazil, and Zambia.
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