Al-K-O-Si, Cell and atoms, Electronic energy gap

• Al-H-K-O-Si
• Al-H-K-Na-O-Si
• Al-Ca-H-K-Na-O-Si
• Al-K-Na-O-Si
• values of electronic energy gap
• chalcogen
• metalloid
• alkali
• disordered
• monoclinic
• hexagonal
• cubic
• orthorhombic
• tetragonal