Citation: Evans, H. T.; Mrose, M. E. (1977). The crystal chemistry of the hydrous copper silicates, shattuckite and plancheite Note: sample is from Rioja, Argentina. American Mineralogist, 62, pp. 491-502.
Formula: Cu8 H6 O27 Si8
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Cu32 O104 Si32 (Cu4 O13 Si4)
Multiplicity: 1
Coordination sequences: