Dendraster Gibbsii - Fossilized Sand Dollar - 1.166" glyptodon A small specimen card is

A small specimen card is also included

this material comes from the personal collection of retired NASA Production Control Engineer William R

We've tested it with numerous Android and Apple smartphones

This specimen is a fragment of North Pole Dome Stromatolite from Dresser Formation in Western Australia

This specimen is a 132-gram fragment of a leaded glass shield window installed in the T Plant (221-T) Plutonium Recovery Building

Dendraster Gibbsii - Fossilized Sand Dollar - 1.166" glyptodon A small specimen card isFossilized at the bottom of the sea floor over 5,000,000 years ago, this Dendraster is a window into the ocean's past. The body plan of the animal has been preserved in beautiful detail, with their intricate skeletons still clearly visible. This particular fossil is a 1. 166" Dendraster gibbsii from the San Joaquin Valley deposit. The petroleum in this region provides a unique, natural stain to the item.