Calcite in septarian nodule (fluorescent) Dr. B. Phillips Coll.

Item Description

Calcite filled septarian nodules from Muddy Creek, Utah are a US classic and are outstanding decorator pieces. Septarian nodules are concretions containing angular cavities or cracks, which are called "septaria". The striking sculptural shrinkage voids in this dramatic large sawed and polished concretion are filled with four generations of colorful calcite, first the light and dark brown calcite lining the voids and then the pretty yellow and finally colorless calcite filling the impressive large void. Yellow and brown fluorescence. A very fine large specimen with striking form. 7.3 pounds or 3.3 kilos mass.