Non-disordered, Temperature for congruent melting, Truncated hexagonal pyramid 9-vertex

• B-Ba-Lu-O
• B
• Ag-N-O
• Al-F
• Al-I-La
• non-disordered
• chalcogen
• transitional
• quaternary
• trigonal
• hexagonal
• monoclinic
• orthorhombic
• cubic