Bismuth Rainbow Crystal Staircase - SOLD 1.940" spaceshuttle 000 years ago so colors

000 years ago so colors and size will vary

“Wood Petrifaction: A New View of Permineralization and Replacement

The tooth of Mosasaur

Maiasaura was a large Ornithischian dinosaur from the Cretaceous Period

Bismuth Rainbow Crystal Staircase - SOLD 1.940" spaceshuttle 000 years ago so colorsBismuth is an element (Bi 83) best known for its unusual staircase shape, the result of bismuth atoms attaching to the edge of a rapidly growing crystal. This is called hoppering, when atoms are drawn to the edge of a structure, creating a lattice formation. This specimen is a Bismuth Rainbow Crystal, measuring 1. 940". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to