Charoïte 12 multicolore 685 Birefringence: 0

685 Birefringence: 0

Silica nanospherules are: - Either of a different shape other than that of a sphere - Either too big - Either of different diameters from each other If any of these parameters come into play

Sizes between 4 and 12mm

Color: More or less light purple

Charoïte 12 multicolore 685 Birefringence: 0Charoite cabochon. Color: Purple to lilac. Shape: Rectangle Size: 42. 98 x 16. 57mm Weight in grams: 9. 88g Carat weight: 49. 41 carat Country of origin: Russia Gemological information on charoite: Possible color: Violet to lilac, speckled with white, yellow, orange and or black. Density: Between 2. 54 and 2. 68 Hardness: Between 5 and 6 Crystal system: Monoclinic Breakage: Irregular Cleavage: Polariscope: Anisotropic (often opaque) Refractive index: