AM_Titanite_86 Formula: Ca Si.988 Ti.636 Al.363 Fe.013 O5 Name: Titanite Unit cell: 7.038 8.635 6.514 90.0 114.24 90.0 , V=360.97 Space group: A12/A1 (15)

Oberti R , Smith D C , Rossi G , Caucia F , European Journal of Mineralogy , 3 (1991) p.777-792, The crystal-chemistry of high-aluminium titanites, Sample: HEL697, Locality: Sierra de los Filabres, Spain