SEPTARIA (large) - Isle of Skye, Scotland
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Cut and polished
Staffin Shale Formation
Isle of Skye, Scotland
A large and beautiful polished section through a septarian nodule from the Isle of Skye.
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.
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.
When cut and polished these nodules can be very beautiful.
Please note: This item weighs over 4 kilograms.
Staffin Shale Formation
Isle of Skye, Scotland
A large and beautiful polished section through a septarian nodule from the Isle of Skye.
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.
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.
When cut and polished these nodules can be very beautiful.
Please note: This item weighs over 4 kilograms.
Click on a picture for a larger image
Size: 26 x 21 x 3.5 centimetres
Weight: 4.23 kilograms
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