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BLUE JOHN (NATURAL PIECE) - Castleton, Derbyshire

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Home > MINERALS > MINERALS FROM BRITAIN AND IRELAND FOR COLLECTORS > NORTHERN AND CENTRAL ENGLAND

 
'BLUE JOHN' FLUORITE

A gemstone unique to Derbyshire

Treak Cliff, Castleton, Derbyshire


A good example of Blue John from an old collection. It is natural and as found.

Blue John is a banded variety of the mineral fluorite. It is only found in the vicinity of Treak Cliff, near Castleton in Derbyshire. Blue John has been mined for hundreds of years and made into jewellery, bowls, goblets, vases, and numerous other decorative items that are now prized throughout the world.

The origin of the name Blue John is not clear.  It is likely that it was a local name given to the stone by the Derbyshire lead miners who already knew the zinc mineral sphalerite by the nickname ‘Black Jack’. 

 
Click on a picture for a larger image

Size: 6 x 5 x 5 centimetres
Weight:  230 grams

PRICE: £27.00
Sorry, this item has been sold or is out of stock
BLUE JOHN (NATURAL PIECE)  - Castleton, Derbyshire
BLUE JOHN (NATURAL PIECE)  - Castleton, Derbyshire BLUE JOHN (NATURAL PIECE)  - Castleton, Derbyshire BLUE JOHN (NATURAL PIECE)  - Castleton, Derbyshire BLUE JOHN (NATURAL PIECE)  - Castleton, Derbyshire