Minerals - Blue John or Derbyshire Spar surface of an un-polished piece of the fluorite mineral. From the Blue John Cavern, Derb

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Minerals - Blue John or Derbyshire Spar surface of an un-polished piece of the fluorite mineral. From the Blue John Cavern, Derbyshire, England.

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Size: 5184px × 3456px
Photo credit: © Richard Becker / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: blue, britain, british, derbyshire, england, english, fluoride, fluorite, fluorspar, geological, geology, john, mineral, mineralisation, rock, spar, vein, veining