VENDU Améthyste chevrons 47 bleu Obsidian is a naturally occurring

Obsidian is a naturally occurring volcanic glass

Indice de réfraction: np: 1

- Chrysophrase

Color: White background with blue and orange color schemes

VENDU Améthyste chevrons 47 bleu Obsidian is a naturally occurringChevron amethyst cabochon. Color: Purple streaked with white Shape: Triangle Size: 32. 82 x 24. 89mm Weight in grams: 8. 18g Carat weight: 40. 95 carat Country of origin: Brazil Gemological information about amethyst: Possible color: Blue mauve, purple, dark magenta, purple magenta Density: 2. 65 Hardness: 7 Crystal system: Trigonal Fracture: Conchoidal Cleavage: None Polariscope: Anisotropic (restores all 90, except in the optical axis) Refractive