AM_Bobfergusonite_1 Formula: Mn3.21 Ca.11 Fe2.16 Mg.58 Al.94 Na2 P6 O24 Name: Bobfergusonite Unit cell: 12.796 12.465 11.001 90.0 97.39 90.0 , V=1740.11 Space group: P121/N1 (14)

Tait K T , Hawthorne F C , Cerny P , Galliski M A , The Canadian Mineralogist , 42 (2004) p.705-716, Bobfergusonite from the Nancy Pegmatite, San Luis Range, Argentina:, Crystal-structure refinement and chemical composition, Locality: Nancy Pegmatite, San Luis Range, Argentina