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: Tai17-1, ferroan. The Canadian Mineralogist, 39, pp. 1333-1345.
Formula: Al1.12 Ba0.01 Fe0.62 H1.88 K0.98 Mg2.37 Na0.02 O12 Si2.8 Ti0.09
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 Fe14 Mg6 O28 Si8 Ti6 (Al4 Fe7 Mg3 O14 Si4 Ti3)
Multiplicity: 1