Septarian Nodule Sculpture
Add this Septarian Nodule Sculpture to your fossils collection. A perfect, unique little gift.
A Septarian nodule is a type of concretions that is formed when cracks appears in the nodule due to shrinkage and are filled with crystals deposited from percolating brines.
The dark patches are calcareous material, the pale ones in the cracks are Calcite.