AM_Cancrinite_19 Formula: O14.35 Si3 Al3 Na4 Name: Cancrinite Unit cell: 12.664 12.664 5.159 90.0 90.0 120.0 , V=716.54 Space group: P63 (173)

Hassan I , Grundy H D , The Canadian Mineralogist , 29 (1991) p.377-383, The crystal structure of basic cancrinite, ideally, Na8[Al6Si6O24](OH)2.3H2O