All 3-vertex, C, Chalcogen, Trigonal

• C-Ca-O
• C-Ca-Mg-O
• C-Mg-O
• C-Mn-O
• C-Fe-Mg-O
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• mechanical properties
• phase transitions
• chalcogen
• non-disordered
• transitional
• carbonate