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Show 26 Roasting OPllir 112 at fr Hill 7500C. Pe.rcent. Percent. of Total Tota.l Total Sol. total sol. of t,otaJ. sol. in sat. brime H2SO4 s e L, Zn Pb S S % Zn. in % % % H2SO4 ore 3.44 3.49 3.68 3.86 6.02 0.93 14:.5 17.2 48.4 47.7 0.80 0'.70 2 hours 2.20 2.10 3.14 5.74 4.26 3.44 84.0 90.5 62.4 58.2 0.23 0.23 2.29 2.05 3.44' 3.50 4.60 4.51 106.4117.0 5lL 3 50.8 0.23 2. 05, 2.00 3'.32 5.04 4.3-3 3 107.0 110.0 5.2.5 51.5 0,.19 0.37 5.07 3.96 107.3 97.6 64.5 59.3 0.67 0.61 Time of ruasting Raw 4 hours 6 hours' 8 nOUT$. 2.00 2.10 Genc.Lust cns at » .• 26 3.86 3_.36 Good r ext::ra.c_:ti'QTIs this'" temperature cxt ddze d., roa'st' on The- ec r'e en roasted was Oh b l.ende as we r e but; the. ga.Lena, ,; Fo:ur hours th? '() seems to be' Pb. 10% cb ta Lned was on % 0.23 the only about: zinc hal long enough to get a , anad.ys i e on the Ophf.r Hill #2 samples fo.llows: 20 mesh Fe. 3.4% On 6.0% H It 35 " II 65 H 49.4% Ii 100 u 30.4% Thru 150 mesh 3.2% 200 2.6% 200 tt 4.4% good |