00900nam a2200229Ia 4500001000700000003000500007005001700012008004100029010001500070043001200085050002600097082002400123086001700147245020000164260003500364300002800399490005900427504005200486650005700538650005100595700002400646192023BIBL20160527191858.0921030s1993    dcua         f000 0 eng    a 92040595   an-us-co00aQE390.2.G65bM56 199300a553.41/09788/382200 aI 19.16:153700aMineralogy, mineral chemistry, and paragenesis of gold, silver, and base-metal ores of the North Amethyst vein system, San Juan Mountains, Mineral County, Coloradocby Nora K. Foley ... [et al.].  aWashingtonbU.S. G.P.O.c1993.  aiv, 39 p.bill.c29 cm. 0aU.S. Geological Survey professional paperv15372Local  aIncludes bibliographical references (p. 37-39). 0aGold oresxGeologyzColoradozMineral County.2Local 0aOre depositszColoradozMineral County.2Local10aFoley, N. K.2Local