Metavivianite
Chukanov N V, Scholz R, Aksenov S M, Rastsvetaeva R K, Pekov I V, Belakovskiy D I,
Krambrock K, Paniago R M, Righi A, Martins R F, Belotti F M, Bermanec V
Mineralogical Magazine 76 (2012) 725-741
Metavivianite, Fe2+Fe3+2(PO4)2(OH)2*6H2O: new data and formula revision
Locality: Boa Vista pegmatite, near Galileia, Minas Gerais, Brazil
_database_code_amcsd 0018993
7.989 9.321 4.629 97.34 95.96 108.59 P-1
atom     x      y      z occ  Uiso
Fe1     .5     .5      0     .0112
Fe2  .1305 -.0845 -.5020     .0117
P    .1888  .1768  .0579     .0098
O1    .045   .219  -.129      .013
O2    .257   .064  -.129      .013
O3    .343   .324   .189      .015
O4    .105   .101   .312      .013
OH1   .351  -.080  -.678  .5  .024
Wat1  .351  -.080  -.678  .5  .024
Wat2  .259   .477   .697      .020
OH3   .137  -.275  -.310  .5  .028
Wat3  .137  -.275  -.310  .5  .028
Wat4  .560   .342   .696      .020