Citation: Ni, Y.; Hughes, J. M. (1996). The crystal structure of nanpingite-2M2, the Cs end-member of muscovite. American Mineralogist, 81, pp. 105-110.
Formula: Al2.34 Cs0.88 F0.2 Fe0.16 H1.8 K0.06 Li0.14 Mg0.2 O11.8 Rb0.01 Si3.16
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al12 F4 Fe4 Li4 Mg4 O24 Si8 (Al3 F Fe Li Mg O6 Si2)
Multiplicity: 1