Ammonite (Cleoniceras) Sliced fossils and Brazil's vast mineral-rich deposits

and Brazil's vast mineral-rich deposits have made it a significant global source of this gemstone

due to iron or manganese impurities

categorized as a variety of chert

and Sulfur

Ammonite (Cleoniceras) Sliced fossils and Brazil's vast mineral-rich depositsSize: 19. 5 cms Weight: 1. 532 kg Location: Madagascar Product Description: Marvel at the stunning internal structure of this sliced Ammonite (Cleoniceras) fossil from Madagascar, showcasing the intricate details of its chambered shell in a beautiful, polished cross section. Geological Information: Where it's found: Madagascar, off the coast of East Africa What it is: Ammonite (Cleoniceras), a type of extinct cephalopod shell Age: Late Cretaceous