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: B1
Locality: Tinker Glacier, Northern Victoria Land, Antarctica
_database_code_amcsd 0002390
5.336 9.239 10.200 90 100.29 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 .95  .0212  .0078  .0071      0  .0020       0
NaA       0     .5      0 .05  .0212  .0078  .0071      0  .0020       0
Fe2+1     0      0     .5 .58  .0052 .00191 .00302      0 .00113       0
Mg1       0      0     .5 .40  .0052 .00191 .00302      0 .00113       0
Fe2+2     0 .33318     .5 .43  .0051 .00278 .00290      0 .00048       0
Mg2       0 .33318     .5 .22  .0051 .00278 .00290      0 .00048       0
Ti2       0 .33318     .5 .08  .0051 .00278 .00290      0 .00048       0
Al2       0 .33318     .5 .27  .0051 .00278 .00290      0 .00048       0
SiT   .0756 .16702 .22575 .66  .0052 .00225 .00248 .00006 .00053  .00003
AlT   .0756 .16702 .22575 .34  .0052 .00225 .00248 .00006 .00053  .00003
O1    .0169      0  .1704      .0191  .0034  .0039      0 -.0005       0
O2    .3256  .2313  .1685      .0125  .0066  .0039 -.0035  .0016  -.0006
O3    .1326  .1687  .3919      .0116  .0038  .0026      0  .0004       0
OH4   .1268     .5  .3978 .77  .0101  .0060  .0026      0      0       0
O4    .1268     .5  .3978 .23  .0101  .0060  .0026      0      0       0