AM_Stilbite-Na_1 Formula: Na2.984 Al4.67 Si13.07 O36 Name: Stilbite-Na Unit cell: 13.57 18.26 11.32 90.0 126.96 90.0 , V=2241.32 Space group: C12/M1 (12)

Mortier W J , American Mineralogist , 68 (1983) p.414-419, Thermal stability of the stilbite-type framework: crystal structure of the, dehydrated sodium/ammonium exchange form