Bismuth Rainbow Crystal Staircase - 2.117" tunguska Please note: Each septarian nodule

Please note: Each septarian nodule pattern is unique and varies in color and complexity

American Museum of Natural History "Fossiliferous Cretaceous Amber from Myanmar (Burma): Its Rediscovery

More information on Eurypterids can be found below

keep in mind that they are 300

Bismuth Rainbow Crystal Staircase - 2.117" tunguska Please note: Each septarian noduleBismuth 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 2. 117". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to