Citation: Oberti, R.; Camara, F.; Caballero, J. M. (2004). Ferri-ottoliniite and ferriwhittakerite, two new end-members of the new Group 5 for monoclinic amphiboles. American Mineralogist, 89, pp. 888-893.
Formula: Al0.1 Ca0.06 F0.47 Fe2.63 H1.51 K0.125 Li1.66 Mg1.35 Mn0.13 Na1.376 O23.51 Si8 Ti0.06 Zn0.31
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al4 Ca8 F4 Fe10 H4 Li10 Mg10 Mn2 Na8 O48 Si16 Ti4 Zn8 (Al2 Ca4 F2 Fe5 H2 Li5 Mg5 Mn Na4 O24 Si8 Ti2 Zn4)
Multiplicity: 1