Perles en calcite bleue entre 6 et 10mm Sizes:6mm 009 Chelsea Filter: Blushes Spectrum:

009 Chelsea Filter: Blushes Spectrum: Not observable / not diagnostic Charoite can be confused with: - Sugilite - Massive Amethyst - Massive fluorite

74mm diameter

25gPoids en carat: 61

Carat weight: 82

Elle contient plus de 85% de silice et d'autres minéraux

Perles en calcite bleue entre 6 et 10mm Sizes:6mm 009 Chelsea Filter: Blushes Spectrum:Blue calcite beads. Color: Blue Size between 6 and 10mm Country of origin: Argentina Gemological information on blue 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 the optical axis Refractive index: Ne: 1. 486 to 1. 550 No: 1. 650 to