Bismuth Rainbow Crystal Staircase - 1.806" rockinaboxpeanutwood Pterosaurs were the first vertebrate

Pterosaurs were the first vertebrate animals to evolve into flying creatures

This specimen is a complete 134

573" mission-flown nose landing gear tire fragment from the Space Shuttle Columbia (OV-102)

The term “tephra” describes any fragment of rock ejected from a volcano during a violent eruption

Bismuth Rainbow Crystal Staircase - 1.806" rockinaboxpeanutwood Pterosaurs were the first vertebrateBismuth 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. 806". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to