Fish Fossil - Knightia Eoceana

Fish Fossil - Knightia EoceanaDuring 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

Grape Agate is a unique and distinctive mineral known from only a few locations on earth

and pure white

Hyalite or Jalite is a form of opal that due to its chemical composition lacks the sought after colorful iridescence of its more sought after precious stone relative

Typically found in intricate

which is a brilliant mineral in the aragonite family known for its twinning crystalline structure and delicate form

These specimens of natural uncut aquamarine occur within a unique matrix of thick mica with a strong yellowish tint

449 million years old

flat barite crystals arranged in densely packed rosettes in hues of rose

The spectacular display of colors these specimens display can be formed by two different geological processes: the oxidation of pyrite causing ultra-thin layers of iron oxide to form on the surface

so care should be taken when handling it

silky and lustrous texture of these fibrous Malachite specimens combined with the incredibly rich color make them deservedly popular among collectors

40-50 million years ago