Bismuth Rainbow Crystal Staircase - SOLD 1.32" phytosaur They are among the most

They are among the most successful of all early animals

Skull Dimensions: 20mm x 30mm x 20mm

They were recovered from the historic Bone Cabin Quarry in Montana

The First Edition Touch Mini Museum MM1 measures approximately 8" wide x 14 1/2" long x 1" thick

Each Mini Museum is handcrafted and ready to inspire you

Bismuth Rainbow Crystal Staircase - SOLD 1.32" phytosaur They are among the mostBismuth 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. 32". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to