00301nam a2200121 a 4500008004100000050001800041100002300059245002300082250001200105260003200117300002100149350000900170120416s1959    ||||||||||||||||| ||    u  aQE 369.O6 Ker  aKerr, Paul Francis10aOptical mineralogy  a3rd ed.  aNew YorkbMcGraw-Hillc1959  axiv, 442p. : ill  a0.00