Citation: Brigatti, M. F.; Medici, L.; Saccani, E.; Vaccaro, C. (1996). Crystal chemistry and petrologic significance of Fe3+-rich phlogopite from the Tapira carbonatite complex, Brazil Sample: Tas22-1b. American Mineralogist, 81, pp. 913-927.
Formula: F0.06 Fe1.16 H1.78 K0.98 Mg2.76 Na0.02 O11.94 Si3.08
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: F4 Fe14 Mg6 O28 Si8 (F2 Fe7 Mg3 O14 Si4)
Multiplicity: 1