02000oam 2200529 450 991070438720332120160229142142.0(CKB)5470000002439809(OCoLC)885119737(EXLCZ)99547000000243980920140802d1958 ua 0engurn||||||||||txtrdacontentcrdamediacrrdacarrierOptical calcite deposits in Park and Sweet Grass Counties, Montana /by W.C. Stoll and Frank C. Armstrong[Washington, D.C.] :United States Department of the Interior, Geological Survey,1958.Washington :United States Government Printing Office.1 online resource (iv, 431-479 pages, 13 pages of plates) illustrations, maps, charts, photographsContributions to economic geologyGeological Survey bulletin ;1042-MTitle from title screen (viewed July 22, 2014).Additional title page description: "A report on Montana deposits that provided essential optical material during the early years of World War II."Includes bibliographical references (pages 476-478) and index.Contributions to economic geologyCalciteMontanaPark CountyCalciteMontanaSweet Grass CountyCalcitefastMontanaPark CountyfastMontanaSweet Grass CountyfastCalciteCalciteCalcite.Stoll W. C(Walter Clericus),1915-1413745Armstrong Frank C.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOOCLCQBOOK9910704387203321Optical calcite deposits in Park and Sweet Grass Counties, Montana3510914UNINA