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This 1.52" red flashy iridescent ammonite fossil comes from Madagascar. Iridescent ammonites get their color from the microscopic layers of their original shell, not from any dye or coating.
Age: Early Cretaceous, about 110 million years old
Color: Vivid red with orange and gold flashes
Condition: 100% natural, no repair or restoration
Specimen #: 2623
About This Specimen
Every detail of this specimen, from the color play across the shell to the curving chamber lines, is shown in the photos. The photos are of the exact specimen you will receive.
About Iridescent Ammonites
Ammonites were shelled marine relatives of squid and octopus that filled the oceans for more than 300 million years before dying out with the dinosaurs. The iridescent ammonites from Madagascar, mostly Cleoniceras, date to the Early Cretaceous, about 110 million years ago. Their shells are made of aragonite, the same mineral as mother-of-pearl, laid down in microscopic layers. When light passes through those layers, it creates natural flashes of color, a structural effect rather than a pigment. Polishing reveals the shell surface and its color, and red is among the most sought-after shades.
Where This Fossil Comes From: Madagascar
Madagascar's ammonites come from Early Cretaceous marine rocks, about 110 million years old, in the northwest of the island near Mahajanga. Ammonites from these deposits often preserve their original aragonite shell, which is what gives them their natural color and shine, and many have chambers filled with calcite or agate. They are collected locally, then cleaned, cut, or polished to reveal the shell.
Authenticity Guarantee. Every fossil at Fossil Driven is hand-selected, photographed individually, and described with more than 13 years of fossil identification experience. Any repair or restoration is always disclosed. Each specimen is backed by our authenticity guarantee and 30-day return policy.
