Mimetite
Yongshan D, Hughes J M, Moore P B
The Canadian Mineralogist 29 (1991) 369-376
The crystal structures of mimetite and clinomimetite, Pb5(AsO4)3Cl
Note: previously known as clinomimetite, now considered a polytype, mimetite-M
Locality: Johanngeorgenstat, Erzgebirge, Sachsen, Germany
_database_code_amcsd 0005265
10.1891 20.3723 7.4564 90 90 119.8827 P2_1/b
atom     x      y     z  Uiso
Pb1A .6694 .41415 .0071 .0144
Pb1B .3367 .58059 .5059 .0142
Pb2A .0045 .37558 .2364 .0143
Pb2B .2527 .37298 .7383 .0157
Pb2C .2466 .74861 .2723 .0137
AsA  .3840  .4545 .2545 .0161
AsB  .4103  .2633 .7533 .0150
AsC  .0248  .5580 .2449 .0123
O1A   .494   .413  .250 .0194
O1B   .331   .667  .760 .0272
O1C   .839   .504  .249 .0156
O2A   .486  .5486  .232 .0074
O2B   .603   .310  .742 .0382
O2C   .109   .505  .278 .0145
O3A   .256   .422  .089 .0240
O3B   .619   .710  .052 .0410
O3C   .085   .599  .050 .0286
O3D   .288   .440  .449 .0312
O3E   .651   .705  .415 .0029
O3F   .084   .623  .407 .0141
Cl    .008  .2505  .490 .0204