Henritermierite
Armbruster T, Kohler T, Libowitzky E, Friedrich A, Miletich R,
Kunz M, Medenbach O, Gutzmer J
American Mineralogist 86 (2001) 147-158
Structure, compressibility, hydrogen bonding, and dehydration of the tetragonal
Mn hydrogarnet, henritermierite
Sample: T = 293 K after heating to 800 K
_database_code_amcsd 0002622
12.1225 12.1225 12.1225 90 90 90 Ia-3d
atom     x      y     z  occ Biso
Mn1      0      0     0      1.33
Mn2   .312   .062   3/8 .044  .79
Ca       0    .25  .125      1.42
Si1    3/8      0   .25  .81   .9
O    .4627 -.0487 .1540       2.0