Apatite, Disordered, Rare earth, Wavelength for luminescence

• Ca-Eu-F-La-Na-O-P
• Ba-Eu-F-Gd-Na-O-P
• Ca-Eu-La-O-Si
• Ba-Cl-Eu-O-P
• Ca-Cl-Eu-O-P
• disordered
• rare earth
• apatite
• chalcogen
• lanthanoid
• hexagonal
• trigonal