What is bluejohn?

Bluejohn is a rare form of fluorite mineral that is found exclusively in the Derbyshire region of England. It is known for its distinctive blue and yellow banding and is often used for decorative purposes such as in vases, sculptures, and jewelry. The name bluejohn originated from the French term "bleu et jaune" meaning blue and yellow. It is believed that bluejohn was first discovered in the 1700s and has been in demand ever since owing to its unique appearance and rarity. The mineral has become a symbol of traditional English craftsmanship, with many artisans using it to create intricate designs and objects. Bluejohn has also been used for its healing properties, as it is believed to help balance emotions and alleviate stress. Despite its popularity, bluejohn is a finite resource and efforts are being made to conserve it and prevent over-mining.