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Title: Septarian nodule
Item Name: Rocks


Septarian nodule - a ball of hardened mud and sediment, with the remains of dead sea life, formed as a result of volcanic activity. Grey/cream, with lines dividing the surface into sections, giving it a turtle back appearance. From Kimmeridge clay? Collected by Hull Geological Society from a Holderness beach.

Materials: limestone; calcite; aragonite
Measurements: Diam:11.5cm
ID_Number: ERYMS (BAG) : 2019.11.49