Cupropearceite Bindi L, Pekov I V Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva 138 (2009) 44-50 Crystal chemistry of extremely Cu-rich cupropearceite from the Sarbay mine, Northern Kazakhstan Location: Sarbay mine, Northern Kazakhstan _database_code_amcsd 0015712 7.2567 7.2567 11.8193 90 90 120 P-3m1 atom x y z occ Uiso Ag1 .31106 .15553 .38548 .222 .0321 Cu1 .31106 .15553 .38548 .778 .0321 Ag2 .3602 .1610 .1241 .350 .108 Ag3 .2992 -.0845 .1190 .400 .105 As 1/3 2/3 .40680 .801 .0215 Sb 1/3 2/3 .40680 .199 .0215 Cu2 0 0 0 .0308 S1 0 0 .1825 .0345 S2 .01672 .50836 .31338 .0288 S3 2/3 1/3 .0200 .0359 S4 0 0 .5 .098