00301nam a2200109 a 4500008004100000050001700041100002000058245004400078260003700122300002300159350000900182120416s1988    ||||||||||||||||| ||    u  aQE 366.2 Sin  aSinkankas, John10aField collecting gemstones and minerals  aPrescottbGeoscience Pressc1988  axviii, 397p. : ill  a0.00