Citation: Teresa Blasco; Avelino Corma; Maria Jos\'e D\'iaz-Caba\~nas; Fernando Rey; Jordi Rius; German Sastre; Jos\'e A. Vidal-Moya (2004). Synthesis, Characterization, and Framework Heteroatom Localization in ITQ-21. Journal of the American Chemical Society, 126, pp. 13414-13423.
Formula: Ge14.83 O71.64 Si20.82
Chemical name:structure solved from laboratory powder diffraction data