Annite
Brigatti M F, Frigieri P, Ghezzo c, Poppi L
American Mineralogist 85 (2000) 436-448
Crystal chemistry of Al-rich biotites coexisting with muscovites in
peraluminous granites
Sample: A4
Locality: Sos Canales pluton, Sardinia Island, Italy
_database_code_amcsd 0002385
5.352 9.268 10.255 90 100.27 90 C2/m
atom      x      y      z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3)  U(2,3)
KA        0     .5      0 .96  .0209  .0073  .0065      0  .0025       0
NaA       0     .5      0 .04  .0209  .0073  .0065      0  .0025       0
Fe2+1     0      0     .5 .70  .0048  .0016  .0027      0  .0013       0
Mg1       0      0     .5 .12  .0048  .0016  .0027      0  .0013       0
Fe2+2     0  .3332     .5 .40  .0039 .00200 .00247      0  .0006       0
Mg2       0  .3332     .5 .32  .0039 .00200 .00247      0  .0006       0
Ti2       0  .3332     .5 .11  .0039 .00200 .00247      0  .0006       0
Al2       0  .3332     .5 .17  .0039 .00200 .00247      0  .0006       0
SiT    .075 .16714 .22626 .68  .0048 .00207 .00246 .00000  .0008 -.00017
AlT    .075 .16714 .22626 .32  .0048 .00207 .00246 .00000  .0008 -.00017
O1    .0130      0  .1704      .0190  .0032  .0041      0  .0003       0
O2    .3272  .2284  .1692      .0136  .0054  .0044 -.0016  .0022  -.0002
O3    .1316  .1690  .3916      .0100  .0035  .0029 -.0002  .0010   .0000
OH4   .1280     .5  .3972 .90  .0093  .0054  .0025      0  .0005       0
O4    .1280     .5  .3972 .08  .0093  .0054  .0025      0  .0005       0
F4    .1280     .5  .3972 .02  .0093  .0054  .0025      0  .0005       0