AM_Titanite_81 Formula: Ca (Ti.6 Al.2 Nb.2) Si O5 Name: Titanite Unit cell: 7.0594 8.7188 6.5651 90.0 113.747 90.0 , V=369.87 Space group: A12/A1 (15)

Liferovich R P , Mitchell R H , The Canadian Mineralogist , 44 (2006) p.1089-1097, Solid solutions of niobium in synthetic titanite, Sample: AlNb2