Gartrellite 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 0006711 5.431 5.642 7.573 67.62 69.57 70.31 P-1 atom x y z Biso PbMe1 0 0 0 .07 FeMe2 0 .5 .5 1.40 CuMe2 .5 0 .5 1.40 AsX .4100 .4347 .7920 1.00 OH1 .146 .171 .4198 .62 O2 .284 .306 .6702 .62 O3a .251 .685 .2815 .62 O3b .686 .230 .2723 .62 O4 .261 .275 .0366 .62