AM_Ralstonite
Formula: Na.35 (Al1.624 Mg.376) F3.882 O2.993 H2.993
Name: Ralstonite
Unit cell: 9.87 9.87 9.87 90.0 90.0 90.0 , V=961.50
Space group: FD3M (227)

Pabst A , American Mineralogist , 24 (1939) p.566-576, Formula and structure of ralstonite