Perles en tourmaline rubellite entre 6 et 10mm TRU Sizes:10mm Please note: Part of the

Please note: Part of the quartz family

except in the optical axis) Refractive index: n0: 1

- Grossulaire massif

Number of drops in a row: Between 40 and 41

Hardness: Between 2

Perles en tourmaline rubellite entre 6 et 10mm TRU Sizes:10mm Please note: Part of theRubellite tourmaline beads. Color: Pink and white Sizes between 6 and 10mm Country of origin: Madagascar Number of pearls on a 6mm row: 64 Number of pearls on a row of 8mm: 49 Number of pearls on a 10mm row: Between 38 and 39 Gemological information about tourmaline: Density: Between 2. 84 and 3. 40 Hardness: Between 7 and 7. 5 Crystal system: Trigonal Fracture: Subconchoidal to irregular Cleavage: None Polariscope: Anisotropic (restores all 90 except