blue john


noun
  1. a blue or purple fibrous variety of fluorspar occurring only in Derbyshire: used for vases, etc

Words Nearby blue john

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use blue john in a sentence

  • The opening of their mine has been called blue john Gap, a clean-cut arch in the rock, the mouth all overgrown with bushes.

    The Last Galley | Arthur Conan Doyle
  • I had not told anyone that I proposed to come to the blue john mine, and it was unlikely that a search party would come after me.

    The Last Galley | Arthur Conan Doyle
  • The most beautiful are those made of fluor-spar, the celebrated blue john Mine providing the most beautiful specimens.

    Chats on Household Curios | Fred W. Burgess
  • There are also spar works where the fluor-spar, or blue john, is wrought into a variety of useful and ornamental articles.

  • Twenty-nine of the choicest warriors instantly volunteered to follow blue john in this hazardous enterprise.