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- Montébrasite
Weight: Approx
Country of origin: Russia
It is an alternation of concretionary sphalerite
VENDU Chrysoprase 15 fleurs - MontébrasiteChrysoprase cabochon. Color: Green Shape: Oval Size: 40. 35 x 24. 63mm Weight in grams: 10. 95g Carat weight: 54. 77 carat Country of origin: Australia Gemological information on chrysoprase: Possible colors: Green Density: Between 2. 57 and 2. 64 Hardness: 6 Crystal system: Trigonal Microcrystalline Fracture: Conchoidal, irregular, splintery Cleavage: Polariscope: Anisotropic Refractive index: Ne: 1. 539 to 1. 545 No: 1. 526 to 1. 535 Birefringence:
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