This classic ammonite exhibits stunning natural irridescent colours when turned to the light which include, greens purple, blue, orange and red. The ammonite and matrix has been fully prepared by Andy Cowap, the bottom of the hard shale has a flat base for display purposes. Caloceras from this locality are becoming increasingly difficult to obtain thesedays due to heavy retrictions on collecting, this wonderful ammonite was collected in 1972. A real collectors piece which is totally unique. Approximately 208 million years old.