Citation: Duarte Ananias; Artur Ferreira; Jo\~ao Rocha; Paula Ferreira; Jos\'e P. Rainho; Cl\'audia Morais; Lu\'is D. Carlos (2001). Novel Microporous Europium and Terbium Silicates. Journal of the American Chemical Society, 123, pp. 5735-5742.
Formula: K Na2 O24 Si8 Tb
Chemical name:disodium potassium terbium octasilicate pentahydrate