Alkali, Chalcogen, Lanthanoid, Photoluminescence spectra, Trigonal

• Ca-Eu-Mg-Na-O-P
• Eu-Li-O-Si-Sr
• Bi-Na-O-Pr-Ti
• Ca-Eu-Li-O-P
• Al-Eu-Na-O-P
• lanthanoid
• rare earth
• alkali
• chalcogen
• luminescent