AM_Titanite_89 Formula: Ca (Al.291 Ti.709) Si O4.709 F.291 Name: Titanite Unit cell: 7.0462 8.6529 6.5231 90.0 114.143 90.0 , V=362.92 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: AlF29