F-K-Mn, F-x polyhedra, Temperature for congruent melting

• F-K-Mn-Rb
• Cs-F-K-Mn
• F-Fe-K-Mn
• F-H-K-Mn-O
• transitional
• halogen
• alkali
• fluoride
• monoclinic
• cubic
• tetragonal
• orthorhombic
• triclinic