Citation: Toraya, H.; Marumo, F. (1981). Structure variation with octahedral cation substitution in the system of germanate micas, KMg3-xMnxGe3AlO10F2. Mineralogical Journal, 10, pp. 396-407.
Formula: Al F2 Ge3 K Mg1.04 Mn1.96 O10
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 F4 Ge8 Mg6 Mn6 O20 (Al4 F2 Ge4 Mg3 Mn3 O10)
Multiplicity: 1