Citation: Steinfink, H. (1962). Crystal structure of a trioctahedral mica: Phlogopite. American Mineralogist, 47, pp. 886-889.
Formula: Fe H2 K0.9 Mg3 Mn0.1 O12 Si3
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Fe8 Mg6 O24 Si8 (Fe4 Mg3 O12 Si4)
Multiplicity: 1