01788oam 2200457 450 991070715410332120160610071710.0(CKB)5470000002461957(OCoLC)891383069(EXLCZ)99547000000246195720140926d1966 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierTernary diagrams of the quartz-feldspar content of pegmatites in Colorado a study of the composition of pegmatites in the Quartz Creek district, Gunnison County, and in the Crystal Mountain district, Larimer County, Colo. /by James J. Norton[Washington, D.C.] :United States Department of the Interior, Geological Survey,1966.Washington :United States Government Printing Office.1 online resource (iii, 16 pages, 1 page of plates) illustrationGeological Survey bulletin ;1241-DContributions to general geologyTitle from title screen (viewed September 15, 2014).Includes bibliographical references (page 16).Ternary diagrams of the quartz-feldspar content of pegmatites in Colorado PegmatitesColoradoPegmatitesfastColoradofastPegmatitesPegmatites.Norton James J(James Jennings),1918-2005,1392651Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707154103321Ternary diagrams of the quartz-feldspar content of pegmatites in Colorado3466863UNINA