Green Smaragd Emerald Zambia 7X10 1,68 karaat Peer vorm
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Hydrothermal synthesis method
Chemical formula: Be3Al2Si6O18
Crystal system: hexagonal
Mohs' hardness: 7,5-8
Density (g/cm3): 2.6-2.8
Refraction index: 1.57-1.58
Color: medium dark green
Inclusions: with some inclusions inside
Width of crystal: 3-8 mm
Length of crystal: 60-100 mm