Russian Pyrites Ammonite Fossil. Jurassic Period. 180 million years old. One of the only known fossil types in the world that has turned to metal. The metallic
content of the waters around Siberia, is very high, and over one hundred and eighty million years, these Ammonites have turned into metal fossils. The Ammonite is
1.9 inches in width, 2.5 inches in length, and 0.2 inches in depth.