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SEPTARIA - cut in two halves and polished - Morocco

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Home > MINERALS > UNUSUAL ROCKS AND MINERALS - WEIRD AND WONDERFUL !


​​​​​​​SEPTARIA

A tiny septarian nodule cut in half and polished

Atlas Mountains, Morocco
 
Septarian nodules, or 'septaria', are remarkable natural objects.  They are round concretions containing a network of internal cracks that have been filled with minerals, usually 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. 

This is a tiny, but very pretty example, selected for its very unusual pattern of calcite 'septa'.

Click on a picture for a larger image


Size:  3.5 centimetres diameter
Weight: 38 grams (weight of both halves)

PRICE: £12.00
Sorry, this item has been sold or is out of stock