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petrography

petrography


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Petrography  \Pe*trog"ra*phy\,  n.  [Petro  +  -graphy.] 
  1.  The  art  of  writing  on  stone. 
 
  2.  The  scientific  description  of  rocks;  that  department  of 
  science  which  investigates  the  constitution  of  rocks; 
  petrology.