AM_Titanite_77 Formula: Ca.85 Na.14 (Ti.7 Nb.15 Zr.15) Si O5 Name: Titanite Unit cell: 7.1276 8.7541 6.6031 90.0 113.847 90.0 , V=376.83 Space group: A12/A1 (15)

Liferovich R P , Mitchell R H , The Canadian Mineralogist , 43 (2005) p.795-812, Composition and paragenesis of Na-, Nb-, and Zr-bearing titanite, from Khibina, Russia, and crystal-structure data for synthetic analogues, Locality: Khibina, Russia