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Biron created emerlad

Biron created emerald

Material specifications:

  • Brand name: Petra Emerald (hydrothermal emerald)
  • Chemical composition: Be3Al2Si6O18
  • Color: light green
  • Symmetry: Hexagonal
  • Hardness (Mohs scale): 7.5-8.0
  • Density: 2.67-2.75
  • Refractive index: 1.578 - 1.572
  • Dispersion (C-F): 0.014
  • Heat resistance: up to 1250°C/2282°F

 

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