00996cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040004700111050002200158051001800180082001100198100004700209245014100256260004800397300003700445410005500482500011200537504003800649650001400687700004100701gs 50000086 DLC20260227111356.0780307s1950    dcua         f000 0 eng c  ags 50000086   a(OCoLC)3694112  aU.S. Geol. Survey. Libr.cUSlWdOCoLCdDLC00aQE75b.P9 no. 225  aQE391.M85bJ3  a549.651 aJahns, Richard H.q(Richard Henry),d1915-10aPhysical characteristics of commercial sheet muscovite in the southeastern United States,cby Richard H. Jahns and Forrest W. Lancaster.  aWashington,bU.S. Govt. Print. Off.,c1950.  aiv, 110 p.billus., map.c29 cm.20aGeological Survey (U.S.).tProfessional paperv225  aPrepared under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority.  a"List of references": p. 106-107. 0aMuscovite1 aLancaster, Forrest W.,ejoint author