05534 - Top Beautiful Cut and Polished 2.21 Inch Septarian Nodule from South Morocco Apatite Most of the spines have

Most of the spines have been restored

Chaledonized gastropods (specimen at fat left is 3

Trilobites et Graptolites) dans le Cambro-Ordovicien du Zemmour

It is difficult to find better specimens than this one

05534 - Top Beautiful Cut and Polished 2.21 Inch Septarian Nodule from South Morocco Apatite Most of the spines haveSeptarian concretions or septarian nodules, are concretions containing angular cavities or cracks, called "septaria". The word comes from the Latin word septum; "partition", and refers to the cracks separations in this kind of rock. Cracks are highly variable in shape and volume, as well as the degree of shrinkage they indicate. Although it has commonly been assumed that concretions grew incrementally from the inside outwards, the fact that radially