Perles en zoïsite et tanzanite entre 4 et 8mm Forme diamant 5 Crystal system: Triclinic Breakage:

5 Crystal system: Triclinic Breakage: Irregular Cleavage: Perfect Polariscope: Anisotropic Refractive index: Np: 1

between 6 and 7 (perpendicular to the axis)

Perles en tourmaline noire forme carré / cube

Informations gemmologiques sur l'obsidienne argentée:

- Dioptase

Perles en zoïsite et tanzanite entre 4 et 8mm Forme diamant 5 Crystal system: Triclinic Breakage:Zoisite and tanzanite beads. Color: Green and purple Size between 4 and 8mm Country of origin: Tanzania Gemological information about zoisite tanzanite: Note: Tanzanite is a variety of zoisite. Possible colors of tanzanite: Blue, dark blue, blue mauve, violet, magenta Possible colors of zoisite: Dark green, apple green, magenta, red, pink, dark yellow, orange, brown, purple Hardness: Between 6 and 6. 5 Crystal system: Orthorhombic Breakage: Irregular