Citation: Gruner, J. W. (1934). Nickel minerals from Barberton, South Africa: III. Willemseite, a nickel-rich talc. Zeitschrift fur Kristallographie, 88, pp. 412-419.
Formula: Fe0.1 H2 Mg0.8 Ni2.1 O12 Si4
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Fe6 Mg6 Ni6 O24 Si8 (Fe3 Mg3 Ni3 O12 Si4)
Multiplicity: 1