Each vein has its own characteristic colour and banding of blue, purple, yellow and white, with there being currently 14 known different veins. Blue John Stone expert and retired Senior Geology ...

A vein of Blue John stone has been found in Derbyshire, 150 years after the last discovery. ... Each vein has its own colour and banding of blue, purple, yellow and white.

A "lost" vein of rare Blue John stone has been rediscovered in a Peak District cavern after a 68-year search. In 1945, miner John Royse reported finding an "amazing deposit" in Treak Cliff Cavern ...

A vein of Blue John stone has been found in Derbyshire, 150 years after the last discovery. ... Each vein has its own colour and banding of blue, purple, yellow and white.

A "lost" vein of rare Blue John stone has been rediscovered in a Peak District cavern after a 68-year search. In 1945, miner John Royse reported finding an "amazing deposit" in Treak Cliff Cavern, ...