Galloplumbogummite
Schluter J, Malcherek T, Mihailova B
Neues Jahrbuch fur Mineralogie, Abhandlungen 191 (2014) 301-309
Galloplumbogummite from Tsumeb, Namibia, a new member of the alunite group
with tetravalent charge balance
Locality: Tsumeb, Namibia
_database_code_amcsd 0020676
7.083 7.083 16.742 90 90 120 R-3m
atom     x      y     z   occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
PbA      0      0     0  .905 .0455  .0602  .0602  .0162  .0301      0      0
CaA      0      0     0  .095 .0455  .0602  .0602  .0162  .0301      0      0
GaB     .5      0    .5 .4464 .0092  .0089  .0076  .0106  .0038  .0004  .0008
AlB     .5      0    .5 .4272 .0092  .0089  .0076  .0106  .0038  .0004  .0008
GeB     .5      0    .5   .12 .0092  .0089  .0076  .0106  .0038  .0004  .0008
FeB     .5      0    .5  .006 .0092  .0089  .0076  .0106  .0038  .0004  .0008
PX       0      0 .3091 .9317 .0135  .0141  .0141  .0121  .0071      0      0
SX       0      0 .3091 .0683 .0135  .0141  .0141  .0121  .0071      0      0
O1       0      0 .6006       .0197  .0216  .0216   .016  .0108      0      0
O2   .2158 -.2158 .0569       .0178  .0202  .0202  .0168  .0130 -.0007  .0007
O3   .1268 -.1268 .1350       .0147  .0137  .0137  .0166  .0068  .0007 -.0007
H1    .207  -.207  .137         .06