Ilmenite Barth T F W, Posnjak E Zeitschrift fur Kristallographie 88 (1934) 265-270 The crystal structure of ilmenite Locality: Quincy, Massachusetts, USA _database_code_amcsd 0010536 5.52 5.52 5.52 54.83 54.83 54.83 R-3 atom x y z Fe .358 .358 .358 Ti .142 .142 .142 O .555 -.055 .25