Citation: Diego Gatta, G.; Nestola, F.; Bromiley, G. D.; Loose, A. (2006). New insight into crystal chemistry of topaz: a multi-methodological study Sample: Neutron refinement at T = 298 K. American Mineralogist, 91, pp. 1839-1846.
Formula: Al2 F1.56 H0.44 O4.44 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al8 F8 H8 O24 Si4 (Al2 F2 H2 O6 Si)
Multiplicity: 1