Perles en prehnite entre 6 et 12mm Sizes:8mm Elle ne remplace pas la

Elle ne remplace pas la consultation d’un professionnel de santé

Informations gemmologiques sur le lapis-lazuli:

accompanied by white

except in the optical axis) Refractive index: n0: 1

Possible color: Ultramarine blue

Perles en prehnite entre 6 et 12mm Sizes:8mm Elle ne remplace pas laPrehnite beads with some episode inclusions. Color: Green and some black Sizes between 6 and 12mm Country of origin: Mali Gemological information about prehnite: Possible colors: Colorless, white, green, yellow, brown Density: between 2. 80 and 2. 95 Hardness: between 6 and 6. 5 Crystal system: Orthorhombic Breakage: Irregular Cleavage: Distinct Polariscope: Anisotropic Refractive index: Np: 1. 611 to 1. 632 Nm: 1. 615 to 1. 642 Ng: 1. 632 to 1. 665