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: Al3.68 Ba0.07 Fe1.79 H2.88 K1.77 Mg2.94 Na0.16 O24 Si5.3 Ti0.28
Chemical name: (K1.77 Na0.16 Ba0.07) (Mg2.94 Fe1.79 Al0.98 Ti0.28) (Al2.7 Si5.3 O20) O1.12 (O H)2.88
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