Bismuth Rainbow Crystal Staircase - SOLD 1.32" wheelershaletrilobite The term “tephra” describes any

The term “tephra” describes any fragment of rock ejected from a volcano during a violent eruption

In addition

Note: These fossils are small and all show some signs of weathering from the fossilization process

which flew on January 12

which continue on into the modern day

Bismuth Rainbow Crystal Staircase - SOLD 1.32" wheelershaletrilobite The term “tephra” describes anyBismuth 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