Al-Fe-Mg-O, Alkaline, Cubic, Primitive cell

• Al-Cr-Fe-Mg-O
• Al-Cr-Fe-Mg-Mn-Ni-O-Ti-V-Zn
• Al-Cr-Fe-Mg-Mn-Ni-O-Ti-V
• Al-Ca-Fe-Mg-O-Si
• chalcogen
• disordered
• alkaline
• transitional