Li.8Al.8Si1.2O4
Xu H, Heaney P J, Beall G H
American Mineralogist 85 (2000) 971-979
Phase transitions induced by solid solution in stuffed derivatives of quartz:
A powder synchrotron XRD study of the LiAlSiO4-SiO2 join
Sample: x=.2, Li.8Al.8Si1.2O4, beta eucryptite structure
_database_code_amcsd 0002463
10.4949 10.4949 10.9650 90 90 120 P6_222
atom     x     y     z  Uiso
Li1      0     0    .5  .025
Li2     .5     0     0  .025
Li3     .5     0  .316  .025
Si1  .2504     0     0 .0079
Si2  .2501 .5002     0 .0079
Al1  .2490     0    .5 .0079
Al2  .2503 .5006    .5 .0079
O1   .1078 .2061 .2438 .0134
O2   .0987 .6966 .2563 .0134
O3   .5913 .7010 .2779 .0134
O4   .5998 .2024 .2494 .0134