World of Faceting Machines Ep.20 : Blue John

This episode features Blue John stone as it is mined, cut, and polished in Castleton, England.

To learn more about Blue John and Treak Cliff Cavern, check out : https://bluejohnstone.com

For more information on the history of gem cutting, please visit www.facetinghistory.com

Additional Footage was used from the following videos:
https://www.youtube.com/watch?v=k8UDEgExToI&t=11s
https://www.youtube.com/watch?v=jNvo-Hwf78k
https://www.youtube.com/watch?v=1Hh2SxCGp6M

Видео World of Faceting Machines Ep.20 : Blue John канала Justin K Prim