All 3-vertex, Cell and atoms, Trigonal

• Bi-Fe-O
• Cd-I
• N-Na-O
• Li-Mn-Ni-O
• C-Ca-O
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• mechanical properties
• elastic moduli
• chalcogen
• transitional
• non-disordered
• disordered