Krupkaite Topa D, Makovicky E, Balic-Zunic T The Canadian Mineralogist 40 (2002) 1147-1159 The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure Sample: bd50 _database_code_amcsd 0005783 4.0145 11.202 11.560 90 90 90 Pmc2_1 atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Bi1 0 .92106 .42767 .0323 .0310 .0330 .0328 0 0 -.0038 Bi2 .5 .56344 .39079 .0330 .0315 .0379 .0295 0 0 -.0015 Bi3 .5 .21048 .56429 .0352 .0347 .0377 .0330 0 0 .0038 Pb1 0 .2507 .2357 .0381 .0394 .0399 .0351 0 0 .0033 Cu1 0 .4612 .6386 .0390 .037 .048 .032 0 0 .003 S1 .5 .8021 .5304 .031 .035 .029 .030 0 0 -.005 S2 .5 .1104 .3629 .030 .030 .033 .027 0 0 -.004 S3 .5 .4447 .1920 .033 .041 .034 .024 0 0 .004 S4 0 .6901 .2882 .029 .033 .028 .025 0 0 .002 S5 0 .3751 .4563 .032 .034 .036 .026 0 0 .002 S6 0 .0531 .6241 .028 .025 .031 .029 0 0 .001