Tsumebite Fanfani L, Zanazzi P F Mineralogical Magazine 36 (1967) 522-529 Structural similarities of some secondary lead minerals Locality: Tsumeb, South West Africa Note: coordinates of O atoms are from arsentsumebite _database_code_amcsd 0014449 7.85 5.80 8.70 90 111 90 P2_1/m atom x y z Pb1 .729 .25 .25 Pb2 .288 .25 .393 Cu2+ 0 0 0 Cu2+ 0 .5 0 S .454 .75 .171 P .032 .75 .340 OH1 .1707 .25 .0811 O2 -.2413 .25 -.4682 O3 .0928 .25 .5563 O4 .4336 .25 .9346 O5 .7754 .25 -.0543 O6 -.0002 .0302 -.2410 O7 .5099 .0252 -.2875