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Blue John - Fluorite - 4g to 8g Tumbled Stone (Selected)

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Blue John - Fluorite - 4g to 8g Tumbled Stone (Selected)

A tumbled stone selected specially for your order, simply click & Collect or Royal Mail post 1st or 2nd class.  You can also visit London Fossils and Crystals retail shop in Waterloo, SE1,  to select yourself.


Size approximately 1cm to 1.5cm
Weight varies 4g to 8g



Blue John 
from Castleton Derbyshire UK

A form of Fluorite with bands of purple-blue or yellowish colour.

In the UK it is found only at Blue John Cavern & Treak Cliff Cavern in the Peak District National Park, 

Castleton, Derbyshire, England.

Also called Fluorspar, a mineral form of Calcium Fluoride. Pure Fluorite is colourless and transparent, impurities within usually make it a colourful mineral.



 




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