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

Fluorite crystals are well shaped

Grape agate is a relatively new mineral and sought after by collectors due to its scarcity and vivid color

and pure white

The effect of this is a remarkable shimmer of gold shining through the blue facets of the fluorite

It has a long archaeological record of human use as a cutting or carving tool

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

the Creede Quadrangle in Colorado

Paradoxides sp

It has a very dramatic "head shield" which is often interpreted as a mechanism to help it stay on top of a soft ocean floor

pyrite is an abundant sulfide mineral that despite some similarities can easily be distinguished from actual gold by its crystal form (typically cuboidal) and being much harder whereas gold is soft and malleable

These unique