Citation: Artioli, G.; Geiger, C. A. (1994). The crystal chemistry of pumpellyite: An X-ray Rietveld refinement and 57Fe Mossbauer study Note: sample K1. Physics and Chemistry of Minerals, 20, pp. 443-453.
Formula: Al2.272 Ca2 Fe0.358 H4 Mg0.373 O14 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Fe12 Mg4 O56 Si12 (Al3 Fe3 Mg O14 Si3)
Multiplicity: 1