Maghemite Pecharroman C, Gonzalez-Carreno T, Iglesias J E Physics and Chemistry of Minerals 22 (1995) 21-29 The infrared dielectric properties of maghemite, gamma-Fe2O3, from reflectance measurement on pressed powders Sample: b) idealized Locality: synthetic _database_code_amcsd 0007899 8.33 8.33 8.33 90 90 90 P4_132 atom x y z occ Fe-oct1 7/8 7/8 7/8 1/3 Fe-oct2 1/8 7/8 1/8 Fe-tet 4/8 4/8 4/8 O1 1/8 1/8 5/8 O2 5/8 5/8 5/8