Lab Created Alexandrite – Chrysoberyl Square Cushion Checkerboard
3 years ago
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Laboratory created (True, Cultured) Czochralski Pulled Alexandrite. Such material produced mostly for low frequency lasers. The laboratory is growing the material with the optimal Chromium concentration, directly for jewelry needs, which gives the best color change effect along with good saturation of colors. This material has about 15-20% lighter coloration that stones produced by other companies. Stones have perfect AAA cut quality
Chemical composition Cr: BeAl2O3
R.I. = 1.64-167, double refractive;
Specific gravity: 3.74;
Mohs Hardness 8.5;
Crystal system: Orthorhombic, strong pleochroic (trichroic). Many stones in size from 9 to 6mm
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