Citation: Hawthorne, F. C.; Grundy, H. D. (1973). The crystal chemistry of the amphiboles. I: Refinement of the crystal structure of ferrotschermakite Locality: Frood Mine, Sudbury, Ontario, Canada. Mineralogical Magazine, 39, pp. 36-48.
Formula: Al3.3 Ca1.86 Fe2.4 H1.98 K0.14 Mg1.22 Mn0.02 Na0.23 O24 Si6 Ti0.1
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al20 Ca4 Fe14 H4 Mg14 Mn4 Na4 O48 Si16 Ti4 (Al10 Ca2 Fe7 H2 Mg7 Mn2 Na2 O24 Si8 Ti2)
Multiplicity: 1