Welinite
Moore P B
Arkiv for Mineralogi och Geologi 4 (1969) 459-466
The crystal structure of welinite (Mn+4,W)<1(Mn+2,W,Mg)<3Si(O,OH)7
Locality: Langban, Sweden
_database_code_amcsd 0012047
8.155 8.155 4.785 90 90 120 P6_3
atom      x     y     z occ Biso
Mn4+1     0     0  .015  .8  .89
W1        0     0  .015  .1  .89
Mn2+2 .3043 .8906     0 .67  .76
W2    .3043 .8906     0  .1  .76
Mg2   .3043 .8906     0  .1  .76
Si      1/3   2/3  .437      .32
O1      1/3   2/3  .767      .13
O2     .135  .630  .297      .45
O3     .058  .843 -.234     1.19