Bismuth Rainbow Crystal Staircase - 2.117" dimetrodonbig making the specimens really pop

making the specimens really pop

and in the "Fat Man" atomic bomb used over Nagasaki

It shows the beautiful banded patterns that is typical of agates from this region

The Pyroraptor

This specimen is a fragment of a Gastornis eggshell from Provence

Bismuth Rainbow Crystal Staircase - 2.117" dimetrodonbig making the specimens really popBismuth 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