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: Al4.5 Ba0.08 Fe1.65 H1.3 K1.78 Mg2.21 Na0.14 O24 Si5.36 Ti0.28
Chemical name: (K1.78 Na0.14 Ba0.08) (Mg2.21 Fe1.65 Al1.86 Ti0.28) (Al2.64 Si5.36 O20) O2.7 (O H)1.3
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al14 Fe6 Mg6 O24 Si8 Ti6 (Al7 Fe3 Mg3 O12 Si4 Ti3)
Multiplicity: 1