Perles en sodalite entre 6 et 8mm SQ brun Black obsidian can be confused

Black obsidian can be confused with:

Refractive index: Ne: 1

Couleur: Violet accompagné de blanc

Stone: Aventurine

Perles en sodalite entre 6 et 8mm SQ brun Black obsidian can be confusedSodalite beads. Color: Blue, white veins Sizes between 6 and 8mm Country of origin: Afghanistan Gemological information about sodalite: Possible colors: Blue, white veins, hackmanite: colorless, pale pink, pale blue, pale purple Density: Between 2. 15 and 2. 30 Hardness: Between 5. 5 and 6 Crystal system: Cubic Fracture: Uneven, subconchoidal to coarse grained Cleavage: Good if monocrystalline Polariscope: Translucent to opaque stone Refractive index: