02a0002553;20011205d1980 ekmy0engy01;eng;a z 000yy;r;Recovery of gold from arsenopyrite concentrates by cyanidation-carbon adsorption;H.J. Heinen ... et al;[Denver];U.S. Bureau of Mines;1980;10 p.;Report of Investigations;U.S. Bureau of Mines;no.8458;2001b;aReport of Investigations ; fU.S. Bureau of Mines ; vno.8458;a770;Heinen;H.J.;101;412438;P;720.66;R29u;v8458 ; r42.30;a02;b1;cP