Blue John Stone

£5.95 £4.25


Blue John Stone
Exclusive to Jurassic Jacks!

Specially prepared for you, this specimen is from one of the only sites allowed to excavate this semi-precious stone.

Only found in the hills of  Derbyshire, Blue John Stone is a semi-precious mineral form of fluorite with bands of purple-blue or yellowish colours.

Mined since the 1700s, the name derives from either the French ‘bleu-jaune’ or from the Cornish word ‘bleujenn’. The stones blue colour may be a physical phenomenon due to crystal lattice rather than mineral impurities.

Own your own unique specimen of fluorite from the UK

Mined exclusively in Derbyshire

Approx Size: 30mm x 15mm



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