Medenbachite
Krause W, Bernhardt H J, Gebert W, Graetsch H, Belendorff K, Petitjean K
American Mineralogist 81 (1996) 505-512
Medenbachite, Bi2Fe(Cu,Fe)(O,OH)2(OH)2(AsO4)2, a new mineral species: Its
description and crystal structure
Sample: 8.0.376, split Bi atom model
_database_code_amcsd 0001791
4.581 6.178 8.969 94.29 99.93 94.85 P-1
atom     x     y     z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Bi1  .1589 .2996 .3953   .5  .0221  .0249  .0257  .0028 -.0060  .0044
Bi2  .2541 .3223 .3883   .5  .0190  .0208  .0274  .0006 -.0054  .0063
Fe1      0     0     0       .0197  .0205  .0297  .0009  .0019  .0095
Cu2      0    .5     0  .88  .0202  .0179  .0262  .0008  .0012  .0102
Fe2      0    .5     0  .12  .0202  .0179  .0262  .0008  .0012  .0102
As   .5411 .7998 .2178       .0205  .0209  .0254  .0006  .0006  .0096
O1    .314  .565  .198       .0217   .020   .031  -.004   .002   .012
O2    .145  .742  .899        .009   .028   .034  -.005  -.003   .013
O3    .338  .012  .182        .025   .020   .037   .002  -.008   .004
O4    .245  .224  .916        .019   .021   .031   .002   .010   .004
O5    .277  .617  .541        .018   .032   .045  -.001  -.002  -.008
O6    .246  .139  .611        .033   .039   .025   .001  -.006   .009