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Different countries where quartz with tourmaline inclusions may be mined: Brazil
Carat weight: 13
Sizes: Between 2 and 5mm
dark magenta
Colors: Green Approximate dimensions: Length: 4
Perles en calcédoine entre 6 et 10mm Tailles:6mm Different countries where quartz withPerles en calcdoine. Couleur: Vert et brun Tailles entre 6 et 10mm Pays d'origine: Brsil Informations gemmologiques sur la calcdoine: Couleur possible: Rouge, orange, bleu, vert, blanc, gris, rose, brun Densit: Entre 2,68 et 2,90 Duret: Entre 6 et 7 Systme cristallin: Trigonal Microcristallin Cassure: Conchodale, irrgulire Clivage: Aucun Polariscope: Anisotrope, rtablit constamment Indice de rfraction: Lecture difficile vers 1,53 1,54 Birfringence:
