Chalcogen, Non-disordered, Fusion, Triclinic

• C-H-N-O
• Ca-H-O-Si
• C-Cu-H-N-O
• C-H-K-N-O
• C-H-N-Na-O
• temperature for congruent melting
• non-disordered
• chalcogen
• transitional
• pnictogen