Citation: Brigatti, M. F.; Medici, L.; Poppi, L.; Vaccaro, C. (2001). Crystal chemistry of trioctahedral micas - 1M from the Alto Paranaiba Igneous Province, Southeastern Brazil Sample: Tpp16-6a. The Canadian Mineralogist, 39, pp. 1333-1345.
Formula: Al1.04 F0.12 Fe0.37 H1.88 K0.98 Mg2.73 Na0.01 O11.88 Si2.8 Ti0.06
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 F4 Fe14 Mg6 O24 Si8 Ti6 (Al4 F2 Fe7 Mg3 O12 Si4 Ti3)
Multiplicity: 1