AM_Pollucite
Formula: (Cs.7 Na.3) (Al.99 Si2.01) O6
Name: Pollucite
Unit cell: 13.682 13.682 13.682 90.0 90.0 90.0 , V=2561.23
Space group: IA-3D (230)

Newnham R E , American Mineralogist , 52 (1967) p.1515-1518, Crystal structure and optical properties of pollucite