Synadelphite
Moore P B
American Mineralogist 55 (1970) 2023-2037
Crystal chemistry of the basic manganese arsenates: IV. Mixed arsenic valences
in the crystal structure of synadelphite
_database_code_amcsd 0000217
10.754 18.865 9.884 90 90 90 Pnma
atom      x     y     z Biso
Mn1   .2941   .75 .3868  .88
Mn2   .5613 .6635 .3729  .85
Mn3   .8269 .5863 .3614  .82
Mn4   .0887 .5039 .3627  .93
Mn5   .3564 .4225 .3575 1.05
As1   .9672   .75 .3618  .12
As2   .3225 .5811 .5654  .12
O1    .1151   .75 .2854  .99
OH2   .4748   .75 .4832 1.33
O3    .2401 .6535 .5163 1.33
O4    .4018 .6818 .2373 1.32
O5    .4714 .5867 .5176 1.10
OH6   .6630 .5927 .2420  .72
OH7   .7158 .6491 .4997  .97
O8    .7417 .4940 .4987  .88
OH9   .9293 .5115 .2381  .77
OH10  .9757 .5726 .4980 1.11
O11   .1838 .4225 .2349  .83
Wat12 .4170 .3306 .2232 2.00