AM_Arrojadite-(KFe) Formula: Al Fe14 Ca Na4 K P12 O48 F2 Name: Arrojadite-(KFe) Unit cell: 24.692 10.031 16.453 90.0 105.78 90.0 , V=3921.59 Space group: A12/A1 (15)

Moore P B , Araki T , Merlino S , Mellini M , Zanazzi P F , American Mineralogist , 66 (1981) p.1034-1049, The arrojadite-dickinsonite series, KNa4Ca(Fe,Mn)14Al(OH)2(PO4)12:, Crystal structure and crystal chemistry, sample NM, Locality: Nancy mine, North Groton, New Hampshite, USA