00959cam a22002771  4500001001300000003000400013005001700017008004100034010001700075035001900092040001900111042001200130050002100142100002100163245005700184260005800241300005200299410004700351500006100398504005200459504006400511504003100575650004300606650001500649999001700664gs 20000433 DLC20260227111325.0760412s1920    xx            000 0 eng    ags 20000433   a(OCoLC)2107140  aDLCcTxEUdDLC  apremarc00aQE91b.A4 no. 181 aAurand, Harry A.10aFluorspar deposits of Colorado,cby Harry A. Aurand.  aDenver, Col.,bEames brothers, state printers,c1920.  a94 p.bincl. illus., map., tab., diagr.c23 cm.20aColorado Geological Survey.tBulletin,v18  aAt head of title: Colorado Geological survey, Boulder...  a"Bibliography of Colorado fluorspar": p. 87-88.  a"Bibliography of fluorspar in the United States": p. 89-91.  aBibliographical footnotes. 0aMines and mineral resourceszColorado. 0aFluorspar.  c26050d26050