Citation: Donnay, G.; Takeda, H.; Morimoto, N.; Donnay, J.D.H. (1964). Trioctahedral one-layer micas. I. Crystal structure of a synthetic iron mica. Acta Crystallographica (1,1948-23,1967), 17, pp. 1369-1373.
Formula: Fe4 H2 K O12 Si3
Chemical name: K Fe3 (Fe Si3 O10) (O H)2
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Fe14 O24 Si8 (Fe7 O12 Si4)
Multiplicity: 1