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calcedony

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calcedony


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Chalcedony  \Chal*ced"o*ny\  (k[a^]l*s[e^]d"[-o]*n[y^]  or 
  k[a^]l"s[-e]*d[-o]*n[y^];  277),  n.;  pl  {Chalcedonies} 
  (-n[i^]z).  [  L.  chalcedonius  fr  Gr  CHalkhdw`n  Chalcedon,  a 
  town  in  Asia  Minor,  opposite  to  Byzantium:  cf  calc['e]doine, 
  OE  calcidoine  casidoyne  Cf  {Cassidony}.]  (Min.) 
  A  cryptocrystalline,  translucent  variety  of  quartz,  having 
  usually  a  whitish  color,  and  a  luster  nearly  like  wax. 
  [Written  also  {calcedony}.] 
 
  Note:  When  chalcedony  is  variegated  with  with  spots  or 
  figures,  or  arranged  in  differently  colored  layers,  it 
  is  called  {agate};  and  if  by  reason  of  the  thickness, 
  color,  and  arrangement  of  the  layers  it  is  suitable  for 
  being  carved  into  cameos,  it  is  called  {onyx}. 
  {Chrysoprase}  is  green  chalcedony;  {carnelian},  a  flesh 
  red,  and  {sard},  a  brownish  red  variety. 
 
  From  WordNet  r  1.6  [wn]: 
 
  calcedony 
  n  :  a  milky  or  grayish  translucent  to  transparent  quartz  [syn:  {chalcedony}] 




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