Citation: Walker, J. R.; Bish, D. L. (1992). Application of Rietveld refinement techniques to a disordered IIb Mg-chamosite Locality: Lebanon, New Hampshire, USA. Clays and Clay Minerals, 40, pp. 319-322.
Formula: Al1.2 Fe2.482 H10 Mg2.518 O18 Si3.8
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 Fe6 Mg6 O24 Si8 (Al4 Fe3 Mg3 O12 Si4)
Multiplicity: 1
Formula: Al2 Fe4 Mg4 O12 (Al Fe2 Mg2 O6)