Rock Identifier
Emerald (Beryl (Be3Al2(SiO3)6)) — gemstone
gemstone

Emerald

Beryl (Be3Al2(SiO3)6)

AI-generated identification · may be incorrect

Hardness: 7.5 to 8 on the Mohs scale, Color: Green to bluish-green, Luster: Vitreous to sub-vitreous, Crystal Structure: Hexagonal, Specific Gravity: 2.67 to 2.78

Hardness
7
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Physical properties

Hardness: 7.5 to 8 on the Mohs scale, Color: Green to bluish-green, Luster: Vitreous to sub-vitreous, Crystal Structure: Hexagonal, Specific Gravity: 2.67 to 2.78

Formation & geological history

Formed in hydrothermal veins or metamorphic environments where beryllium-rich fluids interact with surrounding rocks, typically within schist or pegmatites.

Uses & applications

Used primarily as a high-end gemstone in jewelry and for mineral collections.

Geological facts

Emeralds have been prized since ancient Egyptian times, with Cleopatra being famously fond of them. Flaws and inclusions are often referred to as the 'jardin' (garden) and are accepted as part of their character.

Field identification & locations

Identified by its distinct green color and hexagonal crystal habit, commonly found in countries like Colombia, Zambia, Brazil, and Pakistan.