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: Al1.5 Ba0.07 Fe1.5 H1.72 K1.71 Mg3.4 Na0.22 O24 Si6.5 Ti0.98
Chemical name: (K1.71 Na0.22 Ba0.07) (Mg3.4 Fe1.5 Ti0.98) (Al1.5 Si6.5 O20) O2.28 (O H)1.72
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al8 Fe6 Mg6 O24 Si8 Ti6 (Al4 Fe3 Mg3 O12 Si4 Ti3)
Multiplicity: 1