Li.5Al.5Si1.5O4
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=.50, Li.5Al.5Si1.5O4, beta quartz structure
_database_code_amcsd 0002465
5.1609 5.1609 5.4574 90 90 120 P6_222
atom     x     y  z occ  Uiso
Li       0     0  0 .25  .044
Si      .5     0  0 .75 .0169
Al      .5     0  0 .25 .0169
O    .2052 .4104 .5     .0312