Argandite
Brugger J, Elliott P, Meisser N, Ansermet S
American Mineralogist 96 (2011) 1894-1900
Argandite, Mn7(VO4)2(OH)8, the V analogue of allactite from the metamorphosed
Mn ores at Pipji, Turtmann Valley, Switzerland
Locality: Pipji, Turtmann Valley, Switzerland
_database_code_amcsd 0018517
5.5038 12.2665 10.1055 90 95.559 90 P2_1/n
atom      x      y      z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mn1       0     .5     .5     .0105  .0117  .0098  .0098 -.0010  .0003 -.0016
Mn2  .23235 .17921 .79338     .0120  .0112  .0119  .0124  .0019 -.0019 -.0008
Mn3  .74927 .56820 .99173 .92 .0095  .0072  .0094  .0116 -.0002 -.0003  .0001
Mn4  .24910 .20769 .50088 .94 .0103  .0100  .0104  .0105 -.0012  .0006  .0000
V    .53430 .42008 .70834 .73 .0079  .0074  .0082  .0078  .0004 -.0002 -.0001
As   .53430 .42008 .70834 .27 .0079  .0074  .0082  .0078  .0004 -.0002 -.0001
O2    .5617 .42947  .8817     .0126  .0104  .0143  .0126  .0004 -.0014 -.0002
Oh1   .0535  .3060  .8875     .0138  .0139  .0149  .0126  .0008  .0008 -.0005
Oh3   .0784  .3449  .4060     .0156  .0128  .0156  .0183 -.0007  .0009  .0005
O4    .4159  .2965  .6677     .0177  .0232  .0135  .0156 -.0016 -.0021 -.0046
Oh5   .0749  .5612  .8870     .0152  .0123  .0138  .0192 -.0011  .0008  .0004
Oh6   .5433  .6824  .8724     .0151  .0139  .0157  .0158  .0028  .0018 -.0017
O7    .3496  .5203  .6375     .0154  .0162  .0127  .0165  .0026 -.0025  .0029
O8    .8205  .4273  .6616     .0182  .0135  .0270  .0142  .0048  .0016  .0017
H1     .013   .347   .807      .053
H3     .193   .361   .342      .053
H5     .056   .527   .801      .053
H6     .640   .746   .864      .053