Perles en émeraude entre 4 et 6mm arbre de vie 30 carat Country of origin:

30 carat Country of origin: Madagascar Gemological information about tourmaline: Density: Between 2

90mm Weight in grams: 6

38 caratPays d'origine: RussieInformations gemmologiques sur la charoïte:Couleur possible: Violet à lilas

Blue lace agate beads

Perles en émeraude entre 4 et 6mm arbre de vie 30 carat Country of origin:Emerald pearls Color: Green Sizes: Between 4 and 6mm Country of origin: Colombia Gemological information about emerald: Possible color: From light green to dark green Density: Between 2. 67 and 2. 80 Hardness: Between 7 and 8 Crystal system: Hexagonal Fracture: Slightly conchoidal, friable stone Cleavage: None Polariscope: Anisotropic (restores all 90, except in the optical axis) Refractive index: Ne: 1. 560 to 1. 596 No: 1. 566 to 1. 602