Perles en calcite orange entre 6 et 8mm Sizes:6mm Taille: 37

Taille: 37

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Breakage: Irregular Cleavage: None

Gemological information on quartz with graphite inclusions:

Perles en calcite orange entre 6 et 8mm Sizes:6mm Taille: 37Calcite beads. Color: Orange Sizes between 6 and 8mm Country of origin: India Gemological information about orange calcite: Possible colors: Colorless, orange, white, blue, black, brown, magenta, yellow, Density: Between 2. 60 and 2. 80 Hardness: 3 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic, restores every 90 Refractive index: Ne: 1. 486 to 1. 550 No: 1. 650 to 1. 740 Birefringence: 0. 140 to 0. 190