Ammonite Split and Polished with Mother of Pearl Back

This cut and polished Cleoniceras ammonite fossil from the Cretaceous period in Madagascar is truly stunning. The chambers, separated by crystalline septa, showcase incredible mineralization, each pocket lined with sparkling crystals that give it a geode-like quality. The reverse side shimmers with a beautiful, mother-of-pearl finish, adding to its elegance. This exquisitely polished ammonite is not only a striking display piece but also carries immense historical significance, making it a treasure for any collector or admirer of Earth's ancient wonders.

Ammonites were marine predators that lived during the Paleozoic and Mesozoic eras, thriving especially in the Jurassic and Cretaceous periods before their extinction about 66 million years ago. These fascinating creatures are known for their coiled, spiral shells, which bear a resemblance to the modern nautilus. Their shells were divided into chambers, and as the ammonites grew, they would create new chambers while sealing off the older ones. These chambers, filled with gas, allowed them to regulate their buoyancy and navigate the oceans.

The outer shells of ammonites often feature intricate ribbed or ridged patterns, and over millions of years, mineralization has given some fossils stunning, colorful appearances. Their shells preserved exceptionally well, making ammonites one of the most common fossils found today. Besides being highly sought after by fossil collectors, ammonites play a vital role in geological studies. As index fossils, they help scientists date rock layers and gain insight into ancient environments on Earth.

Weight 581 grams ( One 300 grams and the other 281 grams)

Height 12.5cm

Width 10cm