Bismuth Rainbow Crystal Staircase - SOLD 1.86" rockinaboxjewelry the "primitive" look of the

the "primitive" look of the Araucaria hasn't changed much: straight

The region

A small information card is also enclosed that also serves as the certificate of authenticity

Ammolite is a fossil gemstone composed of ammonite shells that have undergone a process of mineralization preserving and intensifying the natural aragonite in the shell

Above: Front of the Specimen Card featuring NASA image STS07-32-1702

Bismuth Rainbow Crystal Staircase - SOLD 1.86" rockinaboxjewelry the "primitive" look of theBismuth 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. 86". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to