Cell and atoms, Chalcogen, O-Si, Structural properties

• Al-Ca-H-O-Si
• Fe-Mg-O-Si
• Al-Na-O-Si
• Al-H-Na-O-Si
• chalcogen
• metalloid
• disordered
• silicate
• monoclinic
• orthorhombic
• cubic
• hexagonal
• trigonal