Image: Blue John Veins in the Blue John Cavern
Blue_John_Veins_in_the_Blue_John_Cavern.jpg (800 × 531 pixels, file size: 388 KB, MIME type: image/jpeg)
Description: Blue John (or Derbyshire Spar; a form of fluorite) Veins in the Blue John Cavern
Title: Blue John Veins in the Blue John Cavern
Credit: Transferred from en.wikipedia (Original text : Mfloryan (talk))
Author: Mfloryan (talk). Original uploader was Mfloryan at en.wikipedia
Permission: PD-AUTHOR.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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