Akrochordite
Moore P B, Sen Gupta P K, Schlemper E O
American Mineralogist 74 (1989) 256-262
Akrochordite, (Mn,Mg)5(OH)4(H2O)4(AsO4)2: A sheet structure with amphibole walls
_database_code_amcsd 0001206
5.682 17.627 6.832 90 99.49 90 P2_1/c
atom      x     y     z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mn1       0     0     0 0.0163 0.0195 0.0150 -.0003 -.0030  .0064
Mn2   .4758 .0618 .7967 0.0120 0.0144 0.0171  .0006 -.0036  .0043
Mn3  -.0566 .1315 .6470 0.0159 0.0163 0.0099  .0008 -.0016  .0015
As    .3683 .1185 .3188 0.0118 0.0102 0.0049  .0002 -.0037  .0004
O1    .3512 .0470 .1483 0.0168 0.0106 0.0116 -.0001 -.0063 -.0032
O2    .5791 .0965 .5149 0.0142 0.0211 0.0086  .0005 -.0070  .0054
O3    .1033 .1335 .3884 0.0233 0.0254 0.0091  .0037  .0034  .0019
O4    .4380 .1973 .2037 0.0218 0.0101 0.0112 -.0022  .0013 -.0003
OH5   .1252 .0235 .7272 0.0182 0.0115 0.0062  .0009 -.0012 -.0010
OH6   .8144 .1036 .9175 0.0153 0.0131 0.0056  .0001 -.0022  .0002
Wat1  .2964 .1734 .8232 0.0185 0.0128 0.0084 -.0028 -.0037 -.0009
Wat2  .8588 .2483 .1566 0.0176 0.0163 0.0174 -.0007 -.0034  .0006