Citation: Cooper, M. A.; Hawthorne, F. C. (1994). The crystal structure of wherryite, Pb7Cu2(SO4)4(SiO4)2(OH)2, a mixed sulfate-silicate with [M(TO4)2] chains. The Canadian Mineralogist, 32, pp. 373-380.
Formula: Cu2 O26 Pb7 S4 Si2
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Cu4 O36 Pb14 S4 Si4 (Cu2 O18 Pb7 S2 Si2)
Multiplicity: 1