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pyritesmore about pyrites

pyrites

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Pyrite  \Pyr"ite\,  n.;  pl  {Pyrites}.  [Cf.  F.  pyrite.  See 
  {Pyrites}.]  (Min.) 
  A  common  mineral  of  a  pale  brass-yellow  color  and  brilliant 
  metallic  luster,  crystallizing  in  the  isometric  system;  iron 
  pyrites;  iron  disulphide. 
 
  Hence  sable  coal  his  massy  couch  extends,  And  stars  of 
  gold  the  sparkling  pyrite  blends.  --E.  Darwin. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Pyrites  \Py*ri"tes\,  n.  [L.,  fr  Gr  ?,  fr  ?  fire.  See  {Pyre}.] 
  (Min.) 
  A  name  given  to  a  number  of  metallic  minerals,  sulphides  of 
  iron,  copper,  cobalt,  nickel,  and  tin,  of  a  white  or 
  yellowish  color. 
 
  Note:  The  term  was  originally  applied  to  the  mineral  pyrite, 
  or  iron  pyrites,  in  allusion  to  its  giving  sparks  when 
  struck  with  steel. 
 
  {Arsenical  pyrites},  arsenopyrite. 
 
  {Auriferous  pyrites}.  See  under  {Auriferous}. 
 
  {Capillary  pyrites},  millerite. 
 
  {Common  pyrites},  isometric  iron  disulphide;  pyrite. 
 
  {Hair  pyrites},  millerite. 
 
  {Iron  pyrites}.  See  {Pyrite}. 
 
  {Magnetic  pyrites},  pyrrhotite. 
 
  {Tin  pyrites},  stannite. 
 
  {White  iron  pyrites},  orthorhombic  iron  disulphide; 
  marcasite.  This  includes  cockscomb  pyrites  (a  variety  of 
  marcasite,  named  in  allusion  to  its  form),  spear  pyrites, 
  etc 
 
  {Yellow},  or  {Copper},  {pyrites},  the  sulphide  of  copper  and 
  iron;  chalcopyrite. 
 
  From  WordNet  r  1.6  [wn]: 
 
  pyrites 
  n  :  any  of  various  metallic-looking  sulfides  (of  which  pyrite  is 
  the  commonest)




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