Fe-Mg-O, Isomer shift, Mg-x polyhedra

• Cu-Fe-Mg-O
• Fe-H-Mg-O-Se
• Fe-Mg-Mn-O
• Fe-Mg-O-Zn
• chalcogen
• transitional
• alkaline
• disordered
• oxide
• cubic
• triclinic
• monoclinic
• trigonal
• tetragonal