Optical absorption coefficient - wavelength diagram, Rare earth, Transitional

• Gd-Na-O-Tm-W
• Dy-Li-Nb-O
• Al-O-Y-Yb
• Al-Ce-O-Y
• Al-Er-O-Y
• rare earth
• transitional
• chalcogen
• lanthanoid
• nonmetal
• tetragonal
• cubic
• orthorhombic
• monoclinic
• trigonal