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SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk

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SEPTARIA
Cut and polished section of a large septarian nodule

Downham Market, Norfolk

Septarian nodules or 'septaria', are remarkable natural objects.  They are round concretions containing a network of internal cracks that have been filled with minerals, particularly brown and yellow calcite. No traces of the cracks are visible on the surface of the nodule.  

The cracks are called ‘septa’ from the Latin word septum or ‘partition’, which gives the nodules their name.  Exactly how these nodules were formed is still not fully understood. 

Septarian nodules can be very beautiful. This example is a cut and polished section of a much larger nodule that originated in the Kimmeridge Clay of Jurassic age.

Click on a picture for a larger image


Size:  21 x 16 x 6 centimetres
Weight:  2.78 kilograms
Optional metal stand (£1)

PRICE: £39.00
SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk
SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk SEPTARIA (POLISHED SECTION OF A LARGE NODULE) - Norfolk