Virgilite
Li C T
Zeitschrift fur Kristallographie 127 (1968) 327-348
The crystal structure of LiAlSi2O6 III (high-quartz solid solution)
_database_code_amcsd 0010668
5.217 5.217 5.464 90 90 120 P6_222
atom     x     y  z   occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Li       0     0  0 .3333  .0046  .0103  .0510  .0052      0      0
Al      .5     0  0 .3333  .0042  .0028  .0018  .0014      0      0
Si      .5     0  0 .6667  .0042  .0028  .0018  .0014      0      0
O    .2057 .4114 .5        .0176  .0188  .0186  .0094  .0089      0