Li.67Al.67Si1.33O4 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=.33, Li.67Al.67Si1.33O4, beta quartz structure _database_code_amcsd 0002464 5.2102 5.2102 5.4551 90 90 120 P6_222 atom x y z occ Uiso Li 0 0 0 .33 .013 Si .5 0 0 .67 .0117 Al .5 0 0 .33 .0117 O .2053 .4106 .5 .0223