Lab Created Hydrothermal Emerald, Regular color, Oval Loose stone
Size, mm
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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: Dark green Inclusions: With some inclusions inside
Lab Created Hydrothermal Emerald, Colombian color, Oval Loose stone
Size, mm
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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: Bluish-green Inclusions: With some inclusions inside
Lab Created Alexandrite, Oval Loose stone
Size, mm
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Chemical formula: BeAl2O4:Cr3+ Syngony: Rhombic Mohs' hardness: 8.5 Density (g/cm3): 3.63-3.75 Refraction index: 1.740-1.747 Birefringence: 0.01 Pleochroism: Strong Color in the daylight:Greenish-blue Color in a filament lamp light: Violet-purple
