Citation: Guggenheim, S. (1981). Cation ordering in lepidolite type 1M from Radkovice. American Mineralogist, 66, pp. 1221-1232.
Formula: Al1.808 F2 K Li1.56 O10 Si3.492
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al12 F4 Li4 O20 Si8 (Al3 F Li O5 Si2)
Multiplicity: 1