Perles en cyanite, 8mm blanche 50 carat Country of origin:

50 carat Country of origin: Afghanistan Gemological information about serpentine:

25gPoids en carat: 16

55 caratPays d'origine: République Démocratique du Congo

Informations gemmologiques sur la rhodonite:

99mm Weight in grams: 10

Perles en cyanite, 8mm blanche 50 carat Country of origin:Kyanite kyanite kyanite beads. Color: Blue Size: 8mm Country of origin: Brazil Number of pearls in a row: Gemological information about kyanite: Possible color: Blue, green, orange Density: Between 3. 65 and 3. 70 Hardness: Between 4 and 5 (at the axis), between 6 and 7 (perpendicular to the axis) Crystal system: Triclinic Breakage: Splinter Cleavage: Maybe perfect and imperfect Polariscope: Anisotropic Refractive index: Np: 1. 715 to 1. 718 Nm: 1.