Fossil Fish (Knightia sp.) - Green River Formation is a mineral formation that

is a mineral formation that took place millions of years ago

and mordenite

It is a 170-carat

and the Spanish word for sea

Start off your collection right with our starter mineral kit

Fossil Fish (Knightia sp.) - Green River Formation is a mineral formation thatKnightia 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 described in 1907 and is closely related to herrings and sardines. This is the state fossil of Wyoming and is considered the most commonly excavated fossil in the world. This fist had thick scales with conical teeth. Some of