Alkali, Chalcogen, Fusion, H-K-O-P

• H-K-O-P-V
• H-K-Mn-O-P
• Fe-H-K-O-P
• H-K-O-P-Zn
• temperature for congruent melting
• pnictogen
• chalcogen
• alkali
• hydrate
• monoclinic
• triclinic
• orthorhombic
• tetragonal
• hexagonal