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bournonite


bournonite


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Bournonite  \Bour"non*ite\,  n.  [Named  after  Count  Bournon,  a 
  mineralogist.]  (Min.) 
  A  mineral  of  a  steel-gray  to  black  color  and  metallic  luster, 
  occurring  crystallized,  often  in  twin  crystals  shaped  like 
  cogwheels  (wheel  ore),  also  massive.  It  is  a  sulphide  of 
  antimony,  lead,  and  copper.