Fish Fossil - Knightia Eoceana featured During the Eocene

During the Eocene

and is one of the more common gems although pieces of exceptional hue and clarity are considered fairly rare and can be extremely valuable

Natural copper is relatively soft and often found in intricate and unique structures

Beautifully preserved on slabs of flat shale

Aquamarine has a hexagonal crystal structure and is highly prismatic

Fish Fossil - Knightia Eoceana featured During the EoceneDuring 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