Citation: Arguelles, A.; Leoni, M.; Blanco, J. A.; Marcos, C. (2010). Semi-ordered crystalline structure of the Santa Olalla vermiculite inferred from X-ray powder diffraction. American Mineralogist, 95, pp. 126-134.
Formula: Al2.936 Ca0.06 Fe0.438 H17.6 Mg5.68 Na0.04 O30.8 Si5.664 Ti0.042
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al14 Fe6 Mg6 O24 Si8 Ti6 (Al7 Fe3 Mg3 O12 Si4 Ti3)
Multiplicity: 1