Fish Fossil - Knightia Eoceana Amethyst Creedite is a rare mineral

Creedite is a rare mineral in the hydoxylhalide group and is often formed from the intense oxidation of fluorite formations

a crystal occurring in a wide variety of colors and forms

Named for the Greek word for “heavy”

Rainbow or peacock pyrite is a much rarer form of pyrite named for the unmistakable and incredibly vibrant rainbow-colored iridescence it displays

large calcite crystals and the dusting of fine gold from the pyrite is unique to specimens from this specific region of China and have not been found anywhere else

Fish Fossil - Knightia Eoceana Amethyst Creedite is a rare mineralDuring the Eocene, 40 50 million years ago, vast shoals of freshwater fish inhabited a large shallow inland sea across the American West. The herring like fish of the genus Knightia were far and away the most abundant freshwater fish during this era, and because of this they are one of the most frequently found vertebrate fossils on earth. Originating from the famed Green River Formation in Wyoming, fossils of Knightia eocaena and their close