Bismuth Rainbow Crystal Staircase - SOLD 1.67" backtoschool2025 HRH William Windsor

HRH William Windsor

While the root cause of their extinction is unknown

These specimens are carefully wrapped and shipped in sturdy cartons

81" pyritized fossil slab of an Iguanodon from the Weald Clay deposits on the Isle of Wight

resin bead

Bismuth Rainbow Crystal Staircase - SOLD 1.67" backtoschool2025 HRH William WindsorBismuth 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. 67". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to