Alkali, Nonmetal, Trigonal, Wavelength for luminescence

• Bi-Er-Na-O-Ti
• B-Ba-Ce-Eu-Mg-Na-O-Tb
• Bi-Na-O-Sm-Ti
• B-Ba-Ce-Mg-Na-O-Tb
• Ca-Eu-Mg-Na-O-P
• nonmetal
• alkali
• luminescent
• chalcogen
• rare earth