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Blue John Jewellery

Gem of the Peaks

Blue John is quite a rare varity of Fluorite which is mined in The Derbyshire Peak District of England.

Blue John is a purple blue variety of Fluorite , mined exclusively in the Castleton area of Derbyshire . It was formed largely during the Carboniferous geological period , 350 million years ago , from highly saline solutions , seeping into rocks deep below the surface and crystallizing there . 

The Derbyshire region relied on the mining of Blue John , since its discovery in 1766, as it became very popular during the Victorian period  due to its beautiful colourations and patterns. 

It is a birthstone for Pisces and Capricorn . It may calm anxiety , bring clarity , strengthen compassion and respect.