Citation: Hatert, F.; Pasero, M.; Perchiazzi, N.; Theye, T. (2007). Pumpellyite-(Al), a new mineral from Bertrix, Belgian Ardennes. European Journal of Mineralogy, 19, pp. 247-253.
Formula: Al2.75 Ca2 Fe0.125 Mg0.125 O14 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 Fe4 Mg4 O56 Si12 (Al3 Fe Mg O14 Si3)
Multiplicity: 1