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pyrochlore

pyrochlore


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Pyrochlore  \Pyr"o*chlore\,  n.  [Pyro-  +  Gr  ?  pale  green.]  (Min.) 
  A  niobate  of  calcium,  cerium,  and  other  bases,  occurring 
  usually  in  octahedrons  of  a  yellowish  or  brownish  color  and 
  resinous  luster;  --  so  called  from  its  becoming  grass-green 
  on  being  subjected  to  heat  under  the  blowpipe.