Septarian Concretion or Septarians nodule were formed during the Cretaceous Period, around 50 to 70 million years ago. Sea levels were much higher then and the Gulf of Mexico reached inland to Southern Utah where many of the septarian nodules are found. They are also found in Madagascar where conditions were similar.
Periodic volcanic eruptions killed the smaller sea life which sank to the sea bed and started decomposing. The minerals in the shells and carcasses attracted sea floor sediments which accumulated around the carcasses and formed nodules or mud balls. When the ocean eventually receded, the mud balls dried out and began to shrink and crack into the beautiful patterns that you see inside the septarian nodules.
This Septarian Nodule piece is 7.05 Lb and is 6 1/2" x 4 3/4" x 4 3/8".
I sell Tiffany Stone in quantity!! If you interested in better volume pricing, let me know..
All photos are taken while the stone is wet to show its color when polished.
