Citation: Redhammer, G. J.; Roth, G. (2002). Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where M = Ni, Mg, Co, Fe, Al Sample: Sd87#4. American Mineralogist, 87, pp. 1464-1476.
Formula: Al2.54 Fe2.38 H2 K O12 Si2.28
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al14 Fe6 H4 O24 Si8 (Al7 Fe3 H2 O12 Si4)
Multiplicity: 1