gemstone

Rough Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

AI-generated identification · may be incorrect

Hardness: 7.5-8.0; Color: Vivid green to bluish-green; Luster: Vitreous to greasy; Crystal structure: Hexagonal; Specific gravity: 2.67-2.78. This specimen shows a characteristic waxy surface typical of raw, water-worn or low-quality emerald rough.

Hardness: 7
Color: Vivid green to bluish-green
Luster: Vitreous to greasy

Identified July 21, 2026More gemstone →

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Physical properties

Formation & geological history

Formed in hydrothermal veins or pegmatites where beryllium-rich fluids interact with chromium or vanadium-bearing rocks. Most emeralds are hosted in schist or limestone, with Colombian deposits originating in sedimentary environments roughly 30-60 million years ago.

Uses & applications

Primary use is in high-end jewelry (faceting or cabochon cutting). Lower grade material is used for beads, carvings, or as mineral specimens for collectors.

Geological facts

Emeralds are often more fragile than other beryls because they contain many internal fractures and inclusions, known as 'jardin' (garden). They are significantly rarer and often more expensive than diamonds when high quality and untreated.

Field identification & locations

Identify by its characteristic green color and hexagonal habit if preserved. Often found in proximity to quartz and mica. Professional testing for refractive index and specific gravity is recommended to distinguish it from green fluorite or chrome diopside.