VENDU Tourmaline rubellite 4 bois - Irradiated synthetic quartz

- Irradiated synthetic quartz

Common opal is distinguished from noble opal by its construction

Spectrum: Indistinct

These are offcuts of larger shapes

VENDU Tourmaline rubellite 4 bois - Irradiated synthetic quartzRubellite tourmaline cabochon. Color: Pink and white Shape: Drop Size: 32. 03 x 20. 61mm Weight in grams: 6. 38g Carat weight: 31. 92 carat 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.