AM_Thomsonite-Ca Formula: Na Ca1.88 Sr.12 Si5 Al5 O26 H12 Name: Thomsonite-Ca Unit cell: 13.1043 13.0569 13.2463 90.0 90.0 90.0 , V=2266.46 Space group: PNCN (52)

Stahl K , Kvick A , Smith J V , Acta Crystallographica, Section C , 46 (1990) p.1370-1373, Thomsonite, a neutron diffraction study at 13 K, Sample: T = 13 K