A rare mineral has been rediscovered in the UK.
The mineral, a form of fluorite with bands of purple and blue known as 'Blue John' or' Derbyshire spar', was found by a miner testing a new stone chainsaw, according to The Independent.
It was popular during the early 1800s Regency era.
The stone itself is reportedly not found anywhere else around the world apart from the Peak District in the UK, specifically in the Treak Cliff Cavern.
It was found by Gary Ridley, a local miner.
“It was only because we were trying out a new method of mining using a stone chainsaw that we discovered it,” Ridley stated.
“I decided to try the new saw in an area of the cavern we’ve never dug before … just off the tourist route. I couldn’t believe my eyes when, within a few minutes, I had uncovered a substantial deposit.”
The new vein is the first to be found in more than 150 years.
A geological expert and retired Leicester University lecturer Dr Trevor Ford, said the find was a “major new development”.
It follows on from the 2013 rediscovery of a ‘lost vein’ that was first rediscovered in 1945, but whose location had been lost before the prospector who found it died.