Fossil Fish (Knightia sp.) - Green River Formation This mine is one of

This mine is one of the only 2 emerald-producing areas in the United States

Hematite is an iron oxide found virtually everywhere on Earth

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Fossil Fish (Knightia sp.) - Green River Formation This mine is one ofHere is a gorgeous display plate of a natural, non dyed specimen from the Green River Formation. This is a large plate that will catch attention in any collection. Perfect as the centerpiece in a fossil case or mantel! Knightia sp. is an extinct genus of freshwater bony fish that thrived in both North America and Asia during the Eocene Epoch (56 to 33. 9 million years ago). This Epoch took place during the Paleogene Period. This genus was first