WebIf you have forgotten your password you can reset it here. Reset Password × WebStunning Showcave and Working Blue John Mine Treak Cliff Cavern An underground wonderland of stalactites and stalagmites, rocks, minerals and fossils and home of the unique Blue John stone. Tours and activities daily. 01433 [email protected] 0 Items Home Visit Us Online Booking Location, …

Blue John Cavern – Derbyshire, England - Atlas Obscura

Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a rare 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 … See more The most common explanation for the name is that it derives from the French bleu-jaune, meaning 'blue-yellow'. The story goes that Blue John was exported to France where it was used by ormolu workers during the … See more It is sometimes said that Blue John of Derbyshire was discovered by the Romans. However, the earliest source of this story is William Adam's 1843 book Gem of the Peak. It seems likely that Adam was attempting to add some mystique to the … See more Before they can be worked, the stones (having been air-dried for at least a year) are heated in an oven, then placed in a bowl of hot epoxy resin (previously, pine resin was used), and then further heated in a vacuum oven. This drives out air from minute pores in the … See more • Media related to Derbyshire Blue John at Wikimedia Commons See more In the United Kingdom, the blue, banded fluorite known as Blue John is found only under the triangular hill known as Treak Cliff, just outside the town of Castleton. Today the veins are mined only in Blue John Cavern and the nearby Treak Cliff Cavern, … See more By the 19th century Blue John was being fashioned into a wide variety of ornamental items ranging from knife-handles to chalices. The precise quantities mined in any given … See more "The Terror of Blue John Gap" is a short story by Sir Arthur Conan Doyle, which appeared in The Strand Magazine of 1910 and describes the … See more WebBlue John is an unincorporated community in Pulaski County, Kentucky, United States. References This page was last edited on 25 February 2024, at 05:04 (UTC). Text is available under the Creative Commons Attribution-ShareAlike License 3.0; additional terms may apply. By using ... randy freeze

Blue John Fluorite Crystal Specimen Derbyshire UK 3g 21mm …

WebThe Blue John Cavern is steeped in history and old mining equipment is on view inside the cavern. Guided tours are conducted through the cave system at short regular intervals. Each tour lasts 45 minutes to 1 hour during which time a series of magnificent natural water worn caverns are seen. Web1 x Blue John Vial - Gemstone Pieces in Water, Natural Purple, Rare Fluorite from Derbyshire, England FREE WORLDWIDE DELIVERY (1.3k) $15.36 FREE shipping Blue John Stones - 150g of Rough Slices, Natural Colours, England, Fluorite, Hand Mined, Crafts, Healing Stones, FREE WORLDWIDE DELIVERY (434) $33.29 FREE shipping … WebMay 31, 2024 · Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a rare 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 … randy french college station