Fish Fossil - Knightia Eoceana Quartz highly variable Chalcedony spheres or

highly variable Chalcedony spheres or roses are almost geode-like in appearance and one can clearly see the process of geode or agate formation in progress in each specimen

Chalcedony has a unique crystalline structure that gives it an enormously variable appearance

Chondrite H5-6

a crystal occurring in a wide variety of colors and forms

Creedite is sought after for its unique fine crystalline structure

Fish Fossil - Knightia Eoceana Quartz highly variable Chalcedony spheres orDuring 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