Alkali, Breczewski

• H-Li-O-Rb-S
• Cs-I-Zn
• K-Na-O-Se
• H-K-Li-O-S
• Cr-K-Na-O
• thermal and thermodynamic properties
• mechanical properties
• thermal expansion
• phase transitions
• elasticity
• alkali
• nonmetal
• chalcogen
• non-disordered
• quinary
• tetragonal
• monoclinic
• triclinic
• orthorhombic
• trigonal