Septarian Nodules from Poland

Polish septarian nodules are natural sedimentary concretions characterized by networks of irregular fractures filled with calcite. Their formation is associated with geological processes in ancient sedimentary rocks. Cut surfaces reveal contrasting white, brown, and nearly black patterns resembling a mosaic. Each septarian nodule has a unique arrangement of mineral veins.

Our collection features natural septarian nodules from Nowy Kościół in Lower Silesia, Poland. These Permian concretions are known for their distinctive calcite veins and polygonal internal structures. Individual specimens vary in size, shape, and mineral patterns, making them interesting collector specimens from this geological locality.

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