Search results
Results from the WOW.Com Content Network
The miners who work the remaining seams are also the guides for underground public tours. The eight working seams are known as Twelve Vein, Old Dining Room, Bull Beef, New Dining Room, Five Vein, Organ Room, New Cavern and Landscape. In 1865, Blue John Cavern was the site of the first use of magnesium to light a photograph underground. It was ...
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 United Kingdom 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 ...
[6] [7] [8] The mining created and enlarged local caverns, four of which are now open to the public as Peak Cavern, Blue John Cavern, Speedwell Cavern and Treak Cliff Cavern. A small amount of Blue John is mined locally, and sold in a number of local gift shops, one of which is located in the 17th-century tollhouse. [9]
Treak Cliff Cavern is a show cave near Castleton in Derbyshire, England. It is part of the Castleton Site of Special Scientific Interest [4] and one of only two sites where the ornamental mineral Blue John is still excavated (the other is the nearby Blue John Cavern). [5]
This is a partial list of caves in the Peak District of England, arranged alphabetically. [1] [2] Most lie within the Peak District National Park.[3] [4]Eldon Hole Lathkill Head Cave Poole's Cavern Speedwell Cavern Thor's Cave
This is a partial list of caves in Derbyshire, England, arranged alphabetically. [1] [2] Many lie within the Peak District National Park.[3] [4]Giant's Hole Great Masson Cavern Poole's Cavern Speedwell Cavern Cave entrance at Harboro' Rocks
Blue John Cavern, a cavern in Castleton, Derbyshire where fluorite is mined; Bluejohn Canyon, a canyon in Utah, United States, site of the Aron Ralston accident; Blue John, an album by organist John Patton; Lance-Constable Bluejohn, a character in the Discworld series, a member of Ankh-Morpork City Watch; Blue John Gap, a fictional location in ...
Pages in category "Blue John (mineral)" ... Treak Cliff Cavern This page was last edited on 27 August 2020, at 06:04 (UTC). Text is available under the Creative ...