Annite
Redhammer G J, Beran A, Schneider J, Amthauer G, Lottermoser W
American Mineralogist 85 (2000) 449-465
Spectroscopic and structural properties of synthetic micas on the
annite-siderophyllite binary: Synthesis, crystal structure refinement,
Mossbauer, and infrared spectroscopy
Sample: sd37no.10
_database_code_amcsd 0002394
5.3812 9.3234 10.2934 90 100.22 90 C2/m
atom     x     y     z occ Biso
SiT  .5724 .1667 .2260 .665 .77
AlT  .5724 .1667 .2260 .335 .77
Al1      0    .5    .5 .100  .7
Fe1      0    .5    .5 .900  .7
Al2      0 .8323    .5 .114 .97
Fe2      0 .8323    .5 .890 .97
K        0     0     0 .964 2.8
O1   .8201 .2308 .1758      2.3
O2   .5277     0 .1700      1.2
O3   .6368 .1678 .3933      1.2
O4   .1329     0 .3909      1.1