1.2" Brilliant Psiloceras Ammonite - England

This is a brilliantly iridescent Psiloceras planorbis ammonite fossils from England. It has a naturally iridescent shell showing nice blues, greens and deep red colors. Like most fossils from the Blue Lias Formation, these ammonites have been compressed and flattened by the same geological processes of heating and pressure which gives them their iridescent shell.