Fe-Mg-O-Si, Mg-x polyhedra, Orthorhombic, Structural properties

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