00767cam a2200229   4500001001300000003000400013005001700017008004100034010002200075040003500097050001800132082001800150100001900168245006800187260007000255300003700325490005400362504002500416650002100441830005800462999001700520gs 68000274 DLC20260227111423.0690911s1966    mtuab    b    00010 eng c  ags 68000274 //r84  aU.S. Geological Survey Library0 aTN948.Q3bC44  a549.6/8/0978610aChelini, J. M.10aSome high-purity quartz deposits in Montana,cby J. M. Chelini.0 aButte,bMontana College of Mineral Science and Technology,c1966.  aiv, 43 p.billus., maps.c28 cm.1 aMontana. Bureau of Mines and Geology. Bulletin 54  aBibliography: p. 43. 0aQuartzzMontana. 0aBulletin (Montana Bureau of Mines and Geology) ;v54.  c30495d30495