Bismuth Rainbow Crystal Staircase - SOLD 2.033" viking 000-year-old crinoid columnal

000-year-old crinoid columnal

putting their formation at over 4 billion years ago

With their access to many different environments

are basalts created during volcanic floods on the surface

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 - SOLD 2.033" viking 000-year-old crinoid columnalBismuth 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. 033". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to