Beudantite
Szymanski J T
The Canadian Mineralogist 26 (1988) 923-932
The crystal structure of beudantite, Pb(Fe,Al)3((As,S)O4)2(OH)6
_database_code_amcsd 0005220
7.315 7.315 17.0355 90 90 120 R-3m
atom     x     y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb   .0383     0      0 .167  .0226  .0282  .0163  .0141 -.0001 -.0002
As       0     0  .3149 .535  .0080  .0080  .0115  .0040      0      0
S        0     0  .3149 .465  .0080  .0080  .0115  .0040      0      0
Fe       0    .5     .5 .847  .0054  .0076  .0114  .0027 -.0004 -.0002
Al       0    .5     .5 .153  .0054  .0076  .0114  .0027 -.0004 -.0002
O1       0     0  .4068       .0140  .0140  .0529  .0070      0      0
O2   .2145 .4290 -.0532       .0194  .0216  .0133  .0108 -.0007 -.0014
O3   .1254 .2508  .1343       .0096  .0094  .0173  .0047  .0009  .0018