mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Hardness: 7.5-8.0; Color: Green (emerald) embedded in dark host rock; Luster: Vitreous; Crystal System: Hexagonal; Specific Gravity: 2.67-2.78

Hardness: 7
Color: Green (emerald) embedded in dark host rock
Luster: Vitreous

Identified March 29, 2026More mineral →

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Physical properties

Hardness: 7.5-8.0; Color: Green (emerald) embedded in dark host rock; Luster: Vitreous; Crystal System: Hexagonal; Specific Gravity: 2.67-2.78

Formation & geological history

Typically formed in hydrothermal veins or pegmatites where beryllium-rich fluids interact with chromium-bearing metamorphic rocks like mica schists. These deposits can range from hundreds of millions to billions of years old.

Uses & applications

The green crystals are valued as gemstones for jewelry. Raw specimens are highly sought after by mineral collectors for their aesthetic contrast between the emerald and the host matrix.

Geological facts

Emerald is the green variety of beryl. The green color is specifically caused by trace amounts of chromium or sometimes vanadium. Flawless natural emeralds are extremely rare and can be more valuable than diamonds of equal weight.

Field identification & locations

Field identification involves looking for characteristic hexagonal prismatic crystals within a schist or quartz matrix. Notable locations include Colombia, Brazil, Zambia, and Russia. Collectors value specimens where the crystal is distinct and well-colored against the darker background.

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