Bismuth Rainbow Crystal Staircase - SOLD 1.32" phytosaur many of whom lost their

many of whom lost their lives in the forest fires that followed

They are among the most successful of all early animals

96" fossil plant from the genus Calamites that was recovered from a coal bed in Kentucky

Cyclobatis was a skate

90" fossilized Metasequoia cone from a Dawn Redwood at Hell Creek

Bismuth Rainbow Crystal Staircase - SOLD 1.32" phytosaur many of whom lost theirBismuth 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. 32". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to