Citation: Chen, Jianrong; Lager, George A.; Kunz, Martin; Hansen, Thomas C.; Ulmer, Peter (2005). A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al~2~SiO~4~(OD)~2~. Acta Crystallographica, Section E, 61, pp. i253-i255.
Formula: Al2 D2 O6 Si
Chemical name:Dialuminium orthosilicate dihydroxide