Bismuth Rainbow Crystal Staircase - SOLD 1.86" hot The Pyroraptor’s claws were 2

The Pyroraptor’s claws were 2

07" fossil plant from the genus Sphenopteris that was recovered from a coal bed in Kentucky

The brick was removed during renovation work in 1954

and Sang-Heon Shim

75" Maiasaura Vertebra recovered from private land on the Two Medicine Formation in Montana

Bismuth Rainbow Crystal Staircase - SOLD 1.86" hot The Pyroraptor’s claws were 2Bismuth 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. 86". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to