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Blue John Gems

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Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
Blue John Gems
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+44 1433 620519

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Sunday10am - 5pm
Monday10am - 5pm
Tuesday10am - 5pm
Wednesday10am - 5pm
Thursday10am - 5pm
Friday10am - 5pm
Saturday10am - 5pm


Blue John is a semi-precious mineral, a form of fluorite with bands of a purple-blue or yellowish colour. In the UK it is found only at Blue John Cavern and Treak Cliff Cavern at Castleton in Derbyshire. During the 19th century, it was mined for its ornamental value, and mining continues on a small scale. Deposits of fluorite have been recently found in China with colouring and banding similar to the classic Blue John stone.
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