Bismuth Rainbow Crystal Staircase - 1.752" herkimer " Proceedings of the Royal

" Proceedings of the Royal Society B: Biological Sciences 275

tyrannosaurids had a wide postorbital skull which resulted in forward-facing eyes and acute binocular vision

the beads vary in color

The concretion halves can be opened to reveal the septarian pattern within

We use these very same cases for packaging numerous specimens in the Mini Museum collection

Bismuth Rainbow Crystal Staircase - 1.752" herkimer " Proceedings of the RoyalBismuth 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. 752". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to