4,715ct split Ammonite fossil with Ammolite Opal

This stunning fossil was professionally cut and exhibits a beautiful Fibonacci sequence with well defined chambers filled with druzy crystals. The outer shell displays vibrant red ammolite opal on one side with rainbow ammolite opal on the other, and you can observe the crisp flared maple leaf patterned sutures peaking out from behind the opal development. This piece has amazing size, measuring approximately 159.9mm x 133.9mm x 35.8mm (when together) and comes with display stands. This piece originated in the Cretaceous era, and is approximately 100 million years old. Sourced from Madagascar.