Citation: Richardson, S. M.; Richardson, J. W. (1982). Crystal structure of a pink muscovite from Archer's Post, Kenya: Implications for reverse pleochroism in dioctahedral micas. American Mineralogist, 67, pp. 69-75.
Formula: Al3 H2 K O12 Si3
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al12 O24 Si8 (Al3 O6 Si2)
Multiplicity: 1