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

As a mineral specimen stibnite crystals form intricate and almost otherworldly shapes

These high quality and exceptional color Chiapan Amber originated in Mexico during the Oligocene

the mineral contains arsenic and silicate and historically has been used in pyrotechnics as well as a cosmetic since ancient Egyptian times until the safety issues with arsenic in makeup became known

Malachite is known for its deep green coloration

fluorite specimens have been prized since ancient times and are now among the most popular minerals in the collecting world

From the Upper Ordovician Period - Ashgill Stage - Ktaoua Formation

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

but chemical impurities can turn it into a range of spectacular colors

These incredible specimens of natural uncut aquamarine from Mount Little Xuebaodoing in Sichuan

Amethyst is a form of Quartz which gets its beautiful purple tint from the substitution of silicone for iron due to irradiation

A widespread and industrially important mineral

Malachite has been mined for both use in copper tools and for ornamentation and jewelry