A craftsman at the Treak Cliff Cavern workshop in Derbyshire, England placed slices of Blue John, too thin for jewelry, on his window. Photo by Andy Mabbett. Licensed under CC By-SA 3.0. (Cropped to show detail).
Article: Fluorite Value, Price, and Jewelry Information
Credit: Andy Mabbett
|Natural or man made||Natural|
|Origin details||Derbyshire, England|