mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18)
AI-generated identification · may be incorrectHardness: 7.5-8.0 (Mohs scale), Color: Green (from chromium/vanadium), Luster: Vitreous, Crystal structure: Hexagonal prism, Cleavage: Imperfect basal, Specific gravity: 2.67-2.85
- Hardness
- 7
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Physical properties
Hardness: 7.5-8.0 (Mohs scale), Color: Green (from chromium/vanadium), Luster: Vitreous, Crystal structure: Hexagonal prism, Cleavage: Imperfect basal, Specific gravity: 2.67-2.85
Formation & geological history
Formed in metamorphic or igneous environments, specifically pegmatites or hydrothermal veins where beryllium is present. Most emeralds are from the Mesozoic or Cenozoic eras.
Uses & applications
Primarily used as a gemstone in high-end jewelry and for mineral specimen collecting.
Geological facts
Emeralds are one of the 'Big Four' precious stones. This specimen shows a raw crystal embedded in its host rock, which is likely schist or quartz.
Field identification & locations
Identify by its distinct hexagonal crystal habit and vivid green color. Common locations include Colombia, Brazil, Zambia, and North Carolina (USA).
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Septarian Pebble
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