O-Sc, Temperature for congruent melting, Trigonal

• O-Sc-Zr
• Na-O-P-Sc-Si-Zr
• Cr-O-Sc
• B-Ce-Gd-O-Sc
• B-Ce-Gd-Nd-O-Sc
• rare earth
• transitional
• chalcogen
• disordered