Tetrawickmanite
Lafuente B, Yang H, Downs R T
Acta Crystallographica E71 (2015) 234-237
Crystal structure of tetrawickmanite, Mn2+Sn4+(OH)6
Locality: Langban, Sweden
_database_code_amcsd 0020227
7.8655 7.8655 7.7938 90 90 90 *P4_2/n
.25 .25 .25
atom      x       y       z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3) U(2,3)
Mn       .5       0       0     .01017  .0102  .0102 .01012   .0004 .00047 .00021
Sn       .5       0      .5     .00790 .00751 .00801 .00817 -.00042 .00044 .00029
O1   .74065 -.05652   .5894      .0133  .0098  .0174  .0128  -.0002 -.0011  .0014
O2   .42512 -.23929  .56923      .0138  .0147  .0091  .0176   .0001  .0009  .0012
O3   .43079  .08165  .74014      .0113  .0145  .0107  .0087  -.0002  .0005 -.0006
H1     .772   -.171    .517  .5   .030
H2     .740   -.025    .699  .5   .030
H3     .297   -.292    .525  .5   .030
H4     .455   -.252    .707  .5   .030
H5     .465    .215    .743       .030