00968cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040003300111042001200144050001700156100005400173245012700227260004400354300003900398490007700437504002800514650001700542650005800559810008000617999001700697gs 48000080 DLC20260227111354.0790801s1948    mtua          000 0 eng c  ags 48000080   a(OCoLC)5229031  aU.S. Geol. SurveycTxEUdDLC  apremarc00aQE391.S5bH41 aHeinrich, E. Williamq(Eberhardt William),d1918-10aDeposits of the sillimanite group of minerals south of Ennis, Madison County,bwith notes on other occurrences in Montana.  aButte,bMontana School of Mines,c1948.  aiii, 22 p.billus., plate,c28 cm.1 aMontana. Bureau of Mines and Geology. Miscellaneous contributionvno. 10  a"References": p. 21-22. 0aSillimanite. 0aMines and mineral resourceszMontanazMadison County.2 aMontana Bureau of Mines and Geology.tMiscellaneous contribution ;vno. 10.  c28266d28266