Ulvospinel Sedler I K, Feenstra A, Peters T European Journal of Mineralogy 6 (1994) 873-885 An X-ray powder diffraction study of synthetic (Fe,Mn)2TiO4 spinel Sample: D-15 _database_code_amcsd 0006577 8.6651 8.6651 8.6651 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Biso Ti .125 .125 .125 .63 Fe .5 .5 .5 .087 .71 Mn .5 .5 .5 .913 .71 O .2608 .2608 .2608 1.58