00925cam a22002651a 4500001001300000003000400013005001700017008004100034010001700075035001900092040003300111043001200144050002300156051001800179100003000197245006800227260004600295300003300341440003900374500011900413500003500532504003000567650002400597650003800621gs 61000286 DLC20260227111411.0760204s1961    dcub     b   f000 0 eng    ags 61000286   a(OCoLC)1967385  aDLCcIDeKNdOCoLCdDNALdDLC  an-us-co00aQE75b.B9 no. 1114  aQE375.C6bE251 aEckel, Edwin Butt,d1906-10aMinerals of Colorado :ba 100-year record /cby Edwin B. Eckel.  aWashington, [D.C.] :bU.S. G.P.O.,c1961.  aiii, 399 p. :bmap ;c24 cm. 0aGeological Survey bulletin ;v1114  a"A summary of the first 100 years of published knowledge, including the chief occurrences of 445 mineral species."  aOne folded col. map in pocket.  aBibliography: p. 364-399. 0aMineralszColorado. 0aMineralszColoradovBibliography.