Ba-Cu-O-Y, Rare earth, Temperature for congruent melting

• Ba-Cu-La-O-Y
• Ba-Ca-Cu-O-Y
• Al-Ba-Cu-O-Y
• Ba-Ca-Cu-O-Pb-Sr-Y
• transitional
• alkaline
• rare earth
• chalcogen
• oxide
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal