Bismuth Rainbow Crystal Staircase - 1.601" rockinaboxcleoniceras recovered on private land in

recovered on private land in South Dakota from the Hell Creek Formation and crafted into a handsome pendant right here at Mini Museum

The style of the image used on the front of the card may also vary as we change the designs from time to time

our classic acrylic specimen jar size and a large cross section featuring the 1908 growth rings

but it is only in recent history that we've come to understand the complex nature of this unique gemstone

21" on the longest edge

Bismuth Rainbow Crystal Staircase - 1.601" rockinaboxcleoniceras recovered on private land inBismuth 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. 601". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to