Ferrilotharmeyerite Krause W, Belendorff K, Bernhardt H J, McCammon C A, Effenberger H, Mikenda W European Journal of Mineralogy 10 (1998) 179-206 Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite, tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite Locality: Tsumeb mine, Namibia _database_code_amcsd 0006708 9.010 6.246 7.391 90 115.52 90 C2/m atom x y z occ Biso CaMe1 0 0 0 .92 FeMe2 .25 .25 .5 .497 .73 ZnMe2 .25 .25 .5 .503 .73 AsX .91466 .5 .20451 .60 OH1 .3439 .5 .4083 .92 O2 .3183 0 .3621 1.12 O3 .0339 .2798 .2453 .89 O4 .2429 .5 .0206 1.24