Citation: Brigatti, M. F.; Poppi, L. (1993). Crystal chemistry of Ba-rich trioctahedral micas-1M Sample: 20. European Journal of Mineralogy, 5, pp. 857-871.
Formula: Al2.253 Ba0.03 Ca0.026 F0.145 Fe0.801 H0.5 K0.876 Mg1.103 Mn0.026 Na0.068 O11.855 Si2.679 Ti0.138
List type: noninterleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al14 F4 Fe6 Mg6 Mn6 O28 Si8 Ti6 (Al7 F2 Fe3 Mg3 Mn3 O14 Si4 Ti3)
Multiplicity: 1