Septarian nodules mystery: minerals in partitions
Septarian nodules (Septarian concretions) are amazing looking marbles, rocks and up to the size of boulders that have crazy patterns. Perhaps the most famous examples are the Moeraki Boulders in New Zealand. A number of Septarian nodules can be found on the Norfolk/Suffolk border. The one photographed here (about 20 cms wide) has the strange …
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