Non-disordered, R3, Structural properties

• Ag-I-S
• S-Tl
• Fe-Mn-Mo-O
• H-Mg-O-S
• B-C-F-H-N
• compressibility
• mechanical properties
• pressure dependence of cell parameter
• non-disordered
• chalcogen
• transitional
• ternary
• trigonal