Citation: Hawthorne, F. C.; Grundy, H. D. (1978). The crystal chemistry of the amphiboles. VII. Crystal structure and site chemistry of potassian ferri-taramite. The Canadian Mineralogist, 16, pp. 53-62.
Formula: Al1.84 Ca1.178 Fe3.736 H2 K0.494 Mg0.885 Mn0.185 Na1.582 O24 Si6.2 Ti0.186
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al20 Ca4 Fe10 Mg10 Mn6 Na4 O48 Si16 Ti4 (Al10 Ca2 Fe5 Mg5 Mn3 Na2 O24 Si8 Ti2)
Multiplicity: 1