AM_Titanite_88 Formula: Ca (Al.182 Ti.818) Si O4.818 F.182 Name: Titanite Unit cell: 7.0511 8.6722 6.5325 90.0 114.026 90.0 , V=364.84 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: AlF18