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Ammonite Iridescent 8.82cm
iridescent Ammonite fossil from Madagascar displaying intense flashes of greens, blues and reds. This stunning 8.82cm diameter iridescent ammonite was found in the jungle of Mahajanga on the north west coast of Madagascar an island off the east coast of Africa. The incredible colours found in these ammonites are produced by the shell of the fossils being replaced by the mineral Aragonite which gives an opal like effect. These ammonites are often referred to as fire ammonites, opalescent ammonites or just iridescent ammonites. The ammonite was specially selected for its quality and was prepared in our workshop in the United Kingdom and is of a very high grade. The iridescent ammonite is 120 million years old from the Cretaceous period and is of the Cleoniceras species.