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Above: Back of Specimen Card
The geologic sample has been cast in resin and affixed to an informational card with the Mini Museum Seal of Authenticity
The Hell Creek Bundle captures two of the formation's most iconic dinosaurs: Tyrannosaurus rex and Triceratops
AMAZON RIVER
Bismuth Rainbow Crystal Staircase - 1.675" britishhistory Above: Back of Specimen CardBismuth 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. 675". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to
