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chiastolite


chiastolite


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Chiastolite  \Chi*as"to*lite\  (k[-i]*[a^]s"t[-o]*l[imac]t),  n. 
  [Gr.  chiasto`s  marked  with  a  [chi]  +  -lite.  See  {Chiasm}.  So 
  called  from  the  resemblance  of  the  cross  cuts  of  its  crystals 
  to  the  Greek  letter  [chi].]  (Min.) 
  A  variety  of  andalusite;  --  called  also  {macle}.  The 
  tessellated  appearance  of  a  cross  section  is  due  to  the 
  symmetrical  arrangement  of  impurities  in  the  crystal.