AM_Natrolite_8 Formula: K2 Al2 Si3 O12 H4 Name: Natrolite Unit cell: 19.27 19.66 6.469 90.0 90.0 90.0 , V=2450.77 Space group: FDD2 (43)

Baur W H , Kassner D , Kim C , Sieber N H W , European Journal of Mineralogy , 2 (1990) p.761-769, Flexibility and distortion of the framework of natrolite: crystal, structures of ion-exchanged natrolites, Sample: K-natrolite, KK