Bismuth Rainbow Crystal Staircase - 1.974" rockinaboxtethys 57" pair of Ordovician Ophiurida

57" pair of Ordovician Ophiurida Brittle Stars

21 inches in length

the father of supercomputing

The full list of specimens in the Age of Dinosaurs collection appears below and you can read more about each of these amazing items on our special page for Age of Dinosaurs:

Bismuth Rainbow Crystal Staircase - 1.974" rockinaboxtethys 57" pair of Ordovician OphiuridaBismuth 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. 974". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to