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: Tax27-1, ferroan. The Canadian Mineralogist, 39, pp. 1333-1345.
Formula: Al0.8 F0.04 Fe0.72 H1.96 K0.95 Mg2.43 Na0.03 O11.96 Si2.96 Ti0.09
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