AM_Titanite_111 Formula: (Ca.8 Na.2) (Ti.8 Ta.2) Si O5 Name: Titanite Unit cell: 7.1122 8.7166 6.5962 90.0 114.078 90.0 , V=373.35 Space group: A12/A1 (15)

Liferovich R P , Mitchell R H , Physics and Chemistry of Minerals , 33 (2006) p.73-83, Tantalum-bearing titanite: synthesis and crystal structure data, Locality: synthetic, Sample: NaTa2