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changes in colors are directly connected to a change in the amount of iron present at a certain spot
it is a Nickel/Iron alloy so it is susceptible to rust should the coating wear off
ammonites could quickly close the gap between them and their prey
Two Space Race specimens
Bismuth Rainbow Crystal Staircase - 1.518" quartz changes in colors are directlyBismuth 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. 518". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to
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