gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
AI-generated identification · may be incorrectHardness: 7.5-8.0; Color: Sea-foam green to vibrant green; Luster: Vitreous; Crystal Structure: Hexagonal; Specific Gravity: 2.76; Often contains inclusions of mica or quartz.
- Hardness
- 7
- Color
- Sea-foam green to vibrant green
- Luster
- Vitreous
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Physical properties
Hardness: 7.5-8.0; Color: Sea-foam green to vibrant green; Luster: Vitreous; Crystal Structure: Hexagonal; Specific Gravity: 2.76; Often contains inclusions of mica or quartz.
Formation & geological history
Formed in metamorphic or hydrothermal environments where beryllium-bearing fluids interact with chromium or vanadium-rich rocks (like schist or limestone) under high pressure and temperature.
Uses & applications
Used primarily for gemstone cutting (cabochons or faceted), jewelry, and as mineral specimens for collectors.
Geological facts
Emeralds are more brittle than other beryls like aquamarine due to their high inclusion content, often called the 'jardin' (garden). They are the birthstone for May.
Field identification & locations
Identify in the field by its distinct hexagonal crystal habit and vibrant green color that resists scratching by steel. Common locations include Brazil, Colombia, and Zambia.
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