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Keywords from Image Description:
Blue John Veins in the Blue John Cavern. Blue John or Derbyshire Spar form of fluorite Veins in the Blue John Cavern Transferred from org en Original text Mfloryan talk Mfloryan talk Original uploader was Mfloryan at org en PDAUTHOR Marcin Floryan Original upload log page en BlueJohnVeinsintheBlueJohnCavern Mfloryan