Orthorhombic, Pa-x polyhedra, Transitional

• H-N-O-P-V
• F-K-Li-O-P-V
• F-K-O-P-V
• H-O-P-Tl-V
• H-K-O-P-V
• thermal and thermodynamic properties
• electronic and electrical properties
• thermoelectric power
• structural properties
• linear thermal expansion coefficient
• transitional
• chalcogen
• pnictogen
• disordered