Crystals & Stones

Bismuth hopper crystals; photo by Maxim Bilovitskiy, CC BY-SA 4.0 — Roosters Peacock crystal guide
Bismuth: The Stone of Transformation, Order & New Perspective
Bismuth is the elemental mineral Bi, a dense, soft, brittle metal whose colorful oxide films and geometric hopper crystals make it especially distinctive; many rainbow specimens sold today are laboratory-grown.... Read more...