Bismuth Rainbow Crystal Staircase - SOLD 1.61" rockinaboxneolithic The size and shape of

The size and shape of each specimen varies

This specimen is an ichnofossil of an Essexella

The Pyroraptor was first uncovered in the Provence region of France and is believed to have lived during the Late Cretaceous period

We have classified these specimens based on their dominant color

measuring 2

Bismuth Rainbow Crystal Staircase - SOLD 1.61" rockinaboxneolithic The size and shape ofBismuth 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. 61". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to