Citation: Gatta, G. D.; Nestola, F.; Ballaran, T. B. (2006). Elastic behaviour and structural evolution of topaz at high pressure Locality: Ouro Preto, Minas Gerias, Brazil Sample: P = 8.39 GPa. Physics and Chemistry of Minerals, 33, pp. 235-242.
Formula: Al2 F2 O4 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al8 F8 O16 Si4 (Al2 F2 O4 Si)
Multiplicity: 1
Coordination sequences: