Citation: Ferdov, S.; Sa Ferreira, R.A.; Lin Zhi (2006). Hydrothermal synthesis, structural investigation, photoluminescence features, and emission quantum yield of Eu and Eu-Gd silicates with apatite-type structure. Chemistry of Materials (1,1989-), 18, pp. 5958-5964.
Formula: Eu3.96 Gd3.96 H1.86 Na1.2 O25.86 Si6
Chemical name:(Eu2.46 Gd2.46 Na1.2) (Eu1.5 Gd1.5) (Si O4)6 (O H)1.86