Perles en calcite bleue entre 6 et 10mm Sizes:6mm Poids en gramme: 16

Poids en gramme: 16

Couleur: Différentes nuances de brun

Cabochon en lapis-lazuli

Matière: Acier inoxydable

Perles en calcite bleue entre 6 et 10mm Sizes:6mm Poids en gramme: 16Blue 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