Cell and atoms, F-Fe-K, F-x polyhedra, Orthorhombic

• F-Fe-K-O-S
• F-Fe-K-O-P
• F-Fe-H-K-N-O-P
• F-Fe-K-Rb
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• Seebeck coefficient
• thermoelectric power
• halogen
• fluoride
• alkali
• transitional