A beautiful hand sized Septarian Nodule Geode that's been shaped into a large egg.
Septarian is a member of the Carbonate family. It comes in beautiful shades of black, , brown and tan colors, this one's from Madagascar.
This Egg will come with the Carbon Fiber Tube seen in some of the photos to use as a display stand.
Septarian Nodules are concretions that have a series of radiating cracks, crossed by a series of concentric cracks to form a “turtle-back” appearance.
They are also known the "Dragon Stone Healing Stone".
Ball-like Sepatrian Nodules began their life as sedimentary slime at the bottom of a Cretaceous Sea 50 to 70 million years ago. Sediment composed of decomposing plants and animals formed into balls.
Septarians are composed of Calcite which creates the yellow center. Aragonite creating the brown lines. The outer grey rock is Limestone.
There are many deposits of septarian found in the USA, Canada, New Zealand, Australia, Madagascar, Spain, and England.