Alkali, Non-disordered, Ternary, Energy gap for indirect transition

• Na-O-Si
• Cl-K-Zn
• F-K-Mg
• K-Nb-O
• Cl-K-Mg
• alkali
• non-disordered
• ternary
• transitional
• tetragonal
• cubic
• trigonal
• hexagonal
• orthorhombic