AM_Eucryptite_6
Formula: Li Si Al O4
Name: Eucryptite
Unit cell: 13.532 13.532 9.044 90.0 90.0 120.0 , V=1434.22
Space group: R113 (1)

Daniels P , Fyfe C A , American Mineralogist , 86 (2001) p.279-283, Al, Si order in the crystal structure of alpha-eucryptite (LiAlSiO4)