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-s ., • <br /> <br />LABORATORIES, INC. <br />QualltyAnalycica/ServicesSince 1936 <br />46301ndianaStreet•Golden,COe0403 LAB #; 27739301 <br />Phone: (303) 27&4455 • FAX: (303) 278.7010 DATE: 10/14/93 <br />{ <br />TIM HARTLEY <br />DURANGO METALS, INC. <br />P. O. BOX 19255 <br />BOULDER, CO 80308 <br />Semi-Quantitative Emission Spectrographic ~nalysis <br />Customer Sample #: JOHN JAY <br /> (Detection (Detection <br />Element Limit) Units Found Element Limit) Units Found <br />Al (.O1) $ l0 Cr (10) PPM 50 <br />Si (.O1) $ 20 Cu (5) PPM 300 <br />Na (.1) $ 0.1 La (20) PPM N <br />K (.1) $ H Li (100) PPM N <br />Fe (.05) $ 7 Mo (5) PPM 10 <br />Mg (.02) $ 0.5 Nb (20) PPM N <br />Ca (.OS) $ 1.5 Ni (5) PPM 150 <br />T1 (.002) $ 0.2 Pb (10) PPM 100 <br />Mn (10) PPM 1000 Sb (100) PPM N <br />Ag (.5) PPM 300 Sc (5) PPM 10 <br />As (200) 'PPM 7000 Sn (l0) PPM 50 <br />Au (10) PPM 500 Sr (100) PPM 200 <br />B (10) PPM 20 Th (100) i PPM N <br />Ba (20) PPM 200 V (10) PPM 70 <br />Se (1) .PPM 3 W (50) ~ PPM L <br />Bi (10) PPM N Y (10) ~ PPM 15 <br />Cd (20) PPM N Zn (200) PPM 200 <br />Co (5) PPM 30 Zr (10) PPM 100 <br /> G=Greater than value shown <br /> L=Detected but below detection limit shown <br /> N=Not detected <br /> H=Interference <br /> <br />Sample <br />size of 10 mg <br />as analyzed may not be I <br />representative <br />if precious <br />metal m ineralization is nonhomogeneously distributed <br />~~./~' <br />