AM_Titanite_91 Formula: Ca (Al.489 Ti.511) Si O4.511 F.489 Name: Titanite Unit cell: 7.0229 8.613 6.5023 90.0 114.344 90.0 , V=358.34 Space group: A12/A1 (15)

Troitzsch U , Ellis D J , Thompson J , Fitz-Gerald J , European Journal of Mineralogy , 11 (1999) p.955-965, Crystal structural changes in titanite along the join TiO-AlF, Sample: AlF49