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greisen

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greisen


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Greisen  \Grei"sen\,  n.  (Min.) 
  A  crystalline  rock  consisting  of  quarts  and  mica,  common  in 
  the  tin  regions  of  Cornwall  and  Saxony. 
 
  From  WordNet  r  1.6  [wn]: 
 
  greisen 
  n  :  a  granitic  rock  composed  of  quartz  and  mica 




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