Red Iridescent Ammonite - Madagascar Chemical Formula: R3R2(SiO4)3 (R =

Chemical Formula: R3R2(SiO4)3  (R = Various elements that contribute to the species of garnet

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found in the Czech Republic

MadagascarYou will receive the ammonite pictured

Red Iridescent Ammonite - Madagascar Chemical Formula: R3R2(SiO4)3 (R =The Cleoniceras sp. of ammonites has gained popularity over the years. Many collectors enjoy the brilliant flashes of color that are showcased on its shell. These iridescent colors are caused by light reflecting off layers of fossilized aragonite. The most highly prized specimens are excavated from the Bearpaw Formation in Alberta, Canada. These creatures lived during the Cretaceous Period, specifically around 110 million years ago. Ammonites are an