gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Hardness: 7.5-8.0 (Mohs scale), Color: Vivid green to bluish green, Luster: Vitreous, Crystal Structure: Hexagonal, Cleavage: Imperfect basal, Specific Gravity: 2.67-2.78
- Hardness
- 7
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Physical properties
Hardness: 7.5-8.0 (Mohs scale), Color: Vivid green to bluish green, Luster: Vitreous, Crystal Structure: Hexagonal, Cleavage: Imperfect basal, Specific Gravity: 2.67-2.78
Formation & geological history
Formed in metamorphic or hydrothermal environments where beryllium-bearing pegmatites or hydrothermal fluids interact with chromium-rich host rocks. Most high-quality emeralds are millions of years old.
Uses & applications
Primarily used as a precious gemstone in jewelry (rings, necklaces, earrings) and as a highly sought-after mineral specimen for collectors.
Geological facts
Emerald is one of the four traditional 'precious' stones. The presence of chromium and vanadium gives it its signature green color. Unlike most beryl varieties, emeralds are frequently found with natural inclusions often called the 'jardin' (garden).
Field identification & locations
Identify in the field by its distinct hexagonal crystal shape and vibrant green color. Major deposits are found in Colombia, Brazil, and Zambia. In nature, it is often found embedded in a white Quartz or grey Calcite/Schist matrix.
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