Calcioandyrobertsite
Sarp H, Cerny R
European Journal of Mineralogy 16 (2004) 163-169
Calcio-andyrobertsite-2O, KCaCu5(AsO4)4[AsO2(OH)2]*2H2O: its
description, crystal structure and relation with calcio-andyrobertsite-1M
Locality: Tsumeb, Namibia
Note: polytype 2O
_database_code_amcsd 0007032
19.647 10.087 9.963 90 90 90 Pnma
atom      x      y      z  Uiso
K     .0715    .25  .6328 .0325
Ca   .89935    .25  .9002 .0160
Cu1  .78983 .02756 .37139 .0131
Cu2  .77856    .25  .1429 .0120
Cu3  .79195    .25  .6129 .0129
Cu4  .09229    .25  .1333 .0129
As1  .15602 .03890 .33469 .0098
As2  .16753 .04351 .92474 .0104
As3  .93196    .25  .3003 .0214
O1    .1555  .0665  .4998  .019
O2    .8453  .1226  .7130  .017
O3    .0864  .1124  .2716 .0151
O4    .2408  .1147  .9837 .0126
O5    .8266  .1176  .0307  .017
O6    .2271  .1086  .2646 .0138
O7    .0993  .1091  .9997  .019
O8    .1616  .0721  .7607  .019
O9    .8483    .25  .3285  .022
O10   .9613    .25  .1446  .030
OH    .0361  .8834  .6129  .061
Wat   .0128  .8962  .1566  .026