Cristallo grezzo ossidiana blu 410-510CT | Pietra preziosa naturale grezza per gioielli
⦁ Variety/Species:- Natural blue Obsidian. Q1: Is this Blue Obsidian natural?. Q3: Does Blue Obsidian help with communication?. ⦁ Jewellery Making: Perfect for pendants, wire wrapping, and unique handmade creations.