gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

AI-generated identification · may be incorrect

Hardness: 7.5-8.0 on Mohs scale; Color: Intense green to bluish-green; Luster: Vitreous to resinous; Crystal structure: Hexagonal; Cleavage: Poor/indistinct basal; Specific Gravity: 2.67-2.78

Hardness: 7
Color: Intense green to bluish-green
Luster: Vitreous to resinous

Identified July 14, 2026More gemstone →

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Physical properties

Hardness: 7.5-8.0 on Mohs scale; Color: Intense green to bluish-green; Luster: Vitreous to resinous; Crystal structure: Hexagonal; Cleavage: Poor/indistinct basal; Specific Gravity: 2.67-2.78

Formation & geological history

Emeralds are typically found in hydrothermal veins or at the contact between granitic pegmatites and metamorphic rocks/schists. Most high-quality specimens are ancient, dating from hundreds of millions of years ago, formed under intense pressure and heat.

Uses & applications

Primarily used in high-end jewelry and as highly collectible mineral specimens for investors and geological enthusiasts.

Geological facts

Emerald is one of the 'Big Four' precious gemstones. The inclusion of chromium is what gives it the distinct green color; without it, the mineral would be colorless or a different color beryl variant like aquamarine.

Field identification & locations

Identify by its characteristic hexagonal crystal habit and distinctive vivid green color (even in raw form). Commonly found in Colombia, Brazil, and African nations like Zambia.