Citation: Artioli, G.; Rinaldi, R.; Stahl, K.; Zanazzi, P. F. (1993). Structure refinements of beryl by single-crystal neutron and X-ray diffraction Sample no. 2, aquamarine, probed with X-rays, T = 295 K. American Mineralogist, 78, pp. 762-768.
Formula: Al1.97 Be3 Fe0.03 H0.48 O18.48 Si6
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al4 Fe4 O36 Si12 (Al Fe O9 Si3)
Multiplicity: 1