Septarian Nodule – Texas – (Size 7.5″)



Septarian Nodule – Texas – (7.5″) Self Collected with family in 2021.

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Septarian 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.  Formed in the silt and mud when old/ past bodies of water dry up.

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