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717Biréfringence: -0
Dureté: 4
Taille: 15 x 20mm
- Citrine synthétique
Lodolite quartz beads
Calcite 22 Étoile 717Biréfringence: -0Calcite cabochon. Color: Beige and brown Shape: Oval Size: 45. 83 x 31. 14mm Weight in grams: 14. 23g Carat weight: 71. 18 carat Country of origin: Peru Gemological information about calcite: Possible colors: Colorless, white, yellow, green, blue, red, orange, brown, gray, black, magenta Density: Between 2. 60 and 2. 80 Hardness: 3 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic, restores every 90, except in
