Nacrite
Hendricks S
Zeitschrift fur Kristallographie 100 (1939) 509-518
The Crystal Structure of Nacrite Al2 O3 * 2Si O2 * 2H2 O and the
Polymorphism of the Kaolin Minerals.
_cod_database_code 1011062
_database_code_amcsd 0017961
8.94 5.14 43.0 90 90.33 90 Cc
atom      x     y     z
Al1   .8333 .1667  .064
Al2   .1667 .1667  .064
Al3      .5 .1667 .7307
Al4   .8333 .1667 .7307
Al5   .1667 .1667 .3973
Al6      .5 .1667 .3973
Si1       0     0 .6667
Si2   .6667     0 .3333
Si3   .3333     0     0
Si4       0     0 .3333
Si5   .6667     0     0
Si6   .3333     0 .6667
O1        0     0  .703
O2    .6667     0   .37
O3    .3333     0  .036
O4        0     0   .37
O5    .6667     0  .037
O6    .3333     0  .703
O7        0     0  .037
O8    .6667     0  .704
O9    .3333     0   .37
O10     .25   .25 -.012
O11    .917   .25  .655
O12    .583   .25  .321
O13       0    .5 -.012
O14   .6667    .5  .655
O15   .3333    .5  .321
O16     .75   .25 -.012
O17    .417   .25  .655
O18    .083   .25  .321
O19   .6665 .3335  .086
O20   .3332 .3335 .7527
O21  -.0002 .3335 .4193
O22       0  .333  .086
O23   .6667  .333 .4193
O24   .3333  .333 .7527
O25   .3335 .3335  .086
O26   .6668 .3335 .4193
O27   .0002 .3335 .7527