Citation: Brigatti, M.F.; Poppi, L. (1993). Crystal chemistry of a Ba-rich trioctahedral micas-1M. European Journal of Mineralogy (1,1989-), 5, pp. 856-871.
Formula: Al4.01 Ba1.1 F1.44 Fe0.54 H2.7 K0.82 Mg5.07 Na0.08 O22.56 Si4.32 Ti0.06
Chemical name: (K0.82 Na0.08 Ba1.1) (Mg5.07 Fe0.54 Al0.33 Ti0.06) (Al3.68 Si4.32 O19.86) F1.44 (O H)2.7
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al14 F4 Fe6 Mg6 O24 Si8 Ti6 (Al7 F2 Fe3 Mg3 O12 Si4 Ti3)
Multiplicity: 1