Fe-Mg-O-Si, Lattice, Orthorhombic, Transitional

• Al-Fe-Mg-O-Si
• Al-B-F-Fe-H-Mg-O-Si
• Ca-Fe-Mg-O-Si
• Al-Fe-H-Mg-O-Si
• metalloid
• transitional
• alkaline
• chalcogen
• disordered