B-Pb, Metalloid, Phase transitions

• B-H-O-Pb
• B-Bi-O-Pb
• B-O-Pb
• B-Nb-O-Pb
• B-F-O-Pb
• phase diagram
• temperature for congruent melting
• fusion
• decomposition
• metalloid
• chalcogen
• quaternary
• transitional
• monoclinic
• orthorhombic
• trigonal
• triclinic
• hexagonal