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they are all oval in shape
89" polished Cleoniceras fossil from Madagascar
which once was a tundra between the British Isle and continental Europe before it flooded 8
In Pleistocene North America
dendrites are incredible inorganic formations that occur solely due to interactions between physics and geochemistry
Bismuth Rainbow Crystal Staircase - 1.597" dendrite they are all oval inBismuth 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. 597". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to
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