Bismuth Rainbow Crystal Staircase - SOLD 2.165" ussr by which time Pliosaur had

by which time Pliosaur had established itself as a terrifying predator of the seas

which is often darker and more orange in color

Source: Acquired at auction

As it descended

Rock out with a Woolly Mammoth instead

Bismuth Rainbow Crystal Staircase - SOLD 2.165" ussr by which time Pliosaur hadBismuth 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. 165". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to