Perles en tourmaline rubellite entre 6 et 10mm TRD multicolore Polariscope: Generally Microcrystallized: Constantly restores

Polariscope: Generally Microcrystallized: Constantly restores / Opaque: Does not restore (because unobservable) / Rare crystals: Anisotropic: Resets every 90°

29g Carat weight: 76

05mm Weight in grams: 10

Couleur: Ici la partie rubis est majoritaire

16g Carat weight: 40

Perles en tourmaline rubellite entre 6 et 10mm TRD multicolore Polariscope: Generally Microcrystallized: Constantly restoresRubellite tourmaline beads. Color: Pink and white Sizes between 6 and 10mm Country of origin: Madagascar 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 in the optical axis) Refractive index: Ne: 1. 603 to 1. 772 No: 1. 619 to 1. 778 Birefringence: 0. 013 to 0. 033 Chelsea