AM_Na2Si3O7 Formula: Na Si1.5 O3.5 Name: Na2Si3O7 Unit cell: 20.416 6.4987 4.9294 90.0 90.26 90.0 , V=654.01 Space group: C12/C1 (15)

Kruger H , Kahlenberg V , Friese K , Acta Crystallographica, Section B , 62 (2006) p.440-446, Na2Si3O7: an incommensurate structure with crenel-type modulation functions,, refined from a twinned crystal