Ammonite - Fossil Presentation:Nearly Complete SiO2) in place of the

SiO2) in place of the crocidolite fibers

Geological Age: 419 to 359 million years ago

Geological Age: 65

It forms through the oxidation of copper ore deposits

Description: This one of a kind dinosaur bone cross section from Utah has a broad oval cut face with a preserved ring of porous bone texture around the edge and mineral-filled structure through the center

Ammonite - Fossil Presentation:Nearly Complete SiO2) in place of theMined from: Meedensdorf, Bamberg, Bavaria, Germany Era: Jurassic Geological Age: 145201 mya Description: These ammonite fossils from Meedensdorf, Germany show the classic coiled shell form that makes ammonites such recognizable fossils. Because there are multiple specimens in this group, the appearance varies from piece to piece: some are more fully exposed from the surrounding matrix, while others show several ammonites together in one section of