Bismuth Rainbow Crystal Staircase - 1.642" mug but it should be noted

but it should be noted that every slice will display some variation

Above: The front of the Specimen Card for the Tar Pit Specimen

the group became The Beatles—and the rest is music history

This particular specimen was uncovered from the Redonda formation in New Mexico

which also wiped out the dinosaurs

Bismuth Rainbow Crystal Staircase - 1.642" mug but it should be notedBismuth 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. 642". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to