Luminescent, Transitional, Trigonal, Wavelength for luminescence

• Eu-La-O-P-Pb-Si-Zr
• Ca-Eu-O-V
• Eu-F-La
• Al-B-Eu-O-Y
• B-Ce-Lu-O-Sc
• luminescent
• transitional
• chalcogen
• rare earth
• lanthanoid