Bismuth Rainbow Crystal Staircase - 1.642" mug The middle of the 2nd

The middle of the 2nd millennium BCE witnessed an explosion of faience production in Egypt

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

OASISAMERICA (Ancient Ceramics)

which also wiped out the dinosaurs

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

Bismuth Rainbow Crystal Staircase - 1.642" mug The middle of the 2ndBismuth 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