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FROM MONRDNOCK <br />MONADNOCK <br />MINERAL SERVICES <br />w. a P.mNa J. Lanen <br />October 24, 1997 <br />Bob Oswald <br />Division of Minerals ~ Geology <br />484 Turner Drive, B1dg.F-101 <br />Durango, CO 81301 <br />n Bo. 80 <br />~303i 3's <6J0 <br />RE: MEM1.'HIS, FILE NO.M-97-084, Response to Adequacy Review,Letter <br />Dear Mr. Oswald: <br />The following information is to respond to the comments in your <br />"Adequacy Review Letter" dated October 17, 1997: <br />Application-Item 5, page 1 <br />Waste Rock and alluvium are the commodities listed in the <br />application and referred to in the report of your inapectio~z dated <br />10/15/97. <br />A ~:omposite of five random samples was classified and quantified <br />to deter nine overall composition of this material. Based upon this <br />study tli~ following was determined: <br />S`.ze of material - 50$ > i", with mostly 3"-5" pieces <br />50$ c 1", clayey quartz sand and arkose <br />Composition: >1" - 25$ sedimentary with mostly red ar~;osic <br />sandstone and some green mudstone, no <br />mineralization with a small amount of <br />limonite on some surfaces <br />6D$ volcanic with green-grey andesite and <br />quartz monzonite, <1~ pyrite observed, <br />mostly fresh and unaltered surfaces <br />. PHONE N0. : 3033254600 • Oct. 25 1997 09:12PM P2 <br />15$ altered sedimentary and igneous rocks <br />with silicified vein material containing <br />2$-3$ pyrite and <1$ grey to black sulfide <br />mineral8, possibly galena and/or sphalerite <br />Composition: <1" - 70~ unaltered arkosic snadstone with some <br />buff quartz and grey-green igneous rocks <br />30$ altered, tan to ochre, vein material <br />with quartz and igneous country roc's <br />