AM_Ekanite Formula: (Th.95 U.05) (Ca1.92 Fe.06 Mn.02) Si8 O20 Name: Ekanite Unit cell: 7.483 7.483 14.893 90.0 90.0 90.0 , V=833.94 Space group: I422 (97)

Szymanski J T , Owens D R , Roberts A C , Ansell H G , Chao G Y , The Canadian Mineralogist , 20 (1982) p.65-75, A mineralogical study and crystal-structure determination of, nonmetamict ekanite, ThCa2Si8O20, Note: Changed O2-x coordinate to match reported bond lengths