blue john การใช้

• He especially liked Derbyshire " blue john, " a type of amethyst fluorspar.
• Amongst the minerals are Blue John, carved limestone, local specimens, and cave deposits.
• Despite much investigation, the origin of the blue colour of Blue John remains uncertain.
• "Actually, I preferred clabber over blue john, " he wrote.
• None of the Blue John which can be seen by visitors is now mined.
• The "'Blue John Cavern "'is one of the four show caves in Castleton, Derbyshire, England.
• A small amount of Blue John is mined locally.
• Nearby are the villages of Blue John stone.
• You either drank blue john, clabber or water.
• The picturesque village of Castleton, overshadowed by Peveril Castle, has four show caves, the Peak, Blue John.
• The film portrays it as existing 300 miles south of its actual location, in Blue John Canyon.
• The earliest dated decorative applications of Blue John in Britain are those in use as fireplace panels.
• The bridal suite of the Friary Hotel in Derby has a Blue John plaque dated to around 1760.
• Recently discovered deposits in China have produced fluorite with colouring and banding similar to the classic Blue John stone.
• Only the Old Series contains Blue John, but the New Series is well decorated with flowstone, stalagmites and stalactites.
• Recently discovered deposits in China have produced fluorite with coloring and banding similar to the classic Blue John stone.
• It is clear that by this date the mining of Blue John had been going on for several years.
• Thus the unique blue stone mined in these caverns could easily have become known as " Blue John ".
• On a scale and quality with Chatsworth House, internally it featured both oak Blue John, and a carved mahogany staircase.
• The Blue John Cavern in Castleton is a show cave; mining still takes place in the nearby Treak Cliff Cavern.