Table of Contents
How Old Is Blue John stone?
We’re carrying on the tradition of Blue John mining and crafts which were established over 300 years ago and as a designated Site of Special Scientific Interest we’re acting as trustees, looking after the cavern and maintaining it for future generations.
How was Blue John Cavern formed?
Blue John Cave Formation The cavern itself formed when glacial meltwaters flowed through the area forming the valleys and seeping into cracks in the limestone strata and dissolving portions of the limestone.
Is Blue John only found in Derbyshire?
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.
How rare is Blue John?
Blue John is now a very rare and mysterious gemstone mined around the Peak District village of Castleton, Derbyshire. It is believed that it was the Romans that first discovered the gem some 2000 years ago and instantly fell in love with it’s unique qualities.
How hard is Blue John?
Blue John is a soft stone at only 4 on the Mohs scale.
Which is the best Blue John Cavern?
Best Blue John Cavern – Treak Cliff Cavern
- Peak District National Park.
- Hope Valley.
- Castleton – Things to Do.
- Treak Cliff Cavern.
What does Blue John Milk mean?
Definition of blue john 1 : a fibrous or columnar variety of fluorite found in Derbyshire, England and used especially for vases. 2 sometimes capitalized J, dialectal : skim milk especially : milk that is just beginning to sour.
What is Britain’s rarest mineral?
In our ceaseless quest for the finest materials we have been working with the rarest mineral in Britain – Blue John. This semi-precious stone is only found in in the depths of two caves near in Castleton, Derbyshire, first hollowed out by the Romans two thousand years ago.
Is Blue John a hard stone?
Blue John is a purple to violet blue banded hardstone, found only in Castleton area, a village in the High Peak district of Derbyshire, UK. The stone is said to have been mined since the Roman times, more likely mining commenced in the mid 1700s.
What kind of milk is blue john?
Blue John it turns out is a derogatory term for unpasteurized skim milk. This milk has a faint blue tinged color, sort of like washing your fountain pen (remember those?) in the shirt pocket of your best white shirt.
What is the meaning of Blue John?
1 : a fibrous or columnar variety of fluorite found in Derbyshire, England and used especially for vases. 2 sometimes capitalized J, dialectal : skim milk especially : milk that is just beginning to sour.
What is the best blue john?
What is the history of the Blue John Cavern?
The Blue John Cavern is one of the four show caves in Castleton, Derbyshire, England. The cavern takes its name from the semi-precious mineral Blue John, which is still mined in small amounts outside the tourist season and made locally into jewellery. The deposit itself is about 250 million years old.
Where can I find Blue John Stone?
Blue John Stone is now only mined in two caverns: Treak Cliff Cavern and Blue John Cavern. This mineral, a colour banded form of fluorspar, is so beautiful that it has been prized for many hundreds of years.
Who are Blue John craftsmen At Treak Cliff Cavern?
The new generation of Blue John craftsmen at Treak Cliff Cavern are Mr Jack Moseley and Mr John Turner. You can see old 1960s newsreel of Treak Cliff cavern in our video section. Group of old lead miners, 1867. Miners at Treak Cliff Cavern pictured in 1921 with their discovery of bones from three human skeletons dating back to the Neolithic.
Can I book a school party at the Blue John Cavern?
We have great facilities on offer and welcome School Parties to the Blue John Cavern. Please phone 01433 620638 to discuss your requirements and make your booking. Please note that we only take group bookings over the telephone