gemstone
Emerald
Beryl (Be3Al2(SiO3)6)
AI-generated identification · may be incorrectMohs hardness of 7.5-8; green color due to chromium and vanadium; vitreous luster; hexagonal crystal system; poor basal cleavage; specific gravity of 2.68-2.78.
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Physical properties
Mohs hardness of 7.5-8; green color due to chromium and vanadium; vitreous luster; hexagonal crystal system; poor basal cleavage; specific gravity of 2.68-2.78.
Formation & geological history
Formed in hydrothermal veins and pegmatites, often through metamorphic processes where beryllium-rich fluids interact with chromium-bearing rocks.
Uses & applications
Prized globally as a precious gemstone for high-end jewelry and collector specimens.
Geological facts
Emeralds often contain inclusions called 'jardin' (garden) that help gemologists distinguish natural stones from synthetics.
Field identification & locations
Identified by its distinct green color, hexagonal crystal habit, and hardness. Commonly sourced from Colombia, Zambia, and Brazil.
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