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94" slice of petrified wood from Arizona
This specimen is a fragment from a mission-flown payload liner of the Discovery
This Insect in Amber specimen is a self-contained bead of Baltic amber dating to 40
Misaka Mountains and Lake Sai seen from Mount Ryu of Tenshi Mountains
studies show that when compared to other giant theropods
Bismuth Rainbow Crystal Staircase - SOLD 2.100" rockinaboxtigeriron 94" slice of petrified woodBismuth 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 2. 100". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to
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