AM_LiAlSi2O6 III
Formula: Li.333 (Al.333 Si.667) O2
Name: LiAlSi2O6 III
Unit cell: 5.217 5.217 5.464 90.0 90.0 120.0 , V=128.79
Space group: P6222 (180)

Li C T , Zeitschrift fur Kristallographie , 127 (1968) p.327-348, The crystal structure of LiAlSi2O6 III (high-quartz solid solution)