Citation: Hawthorne, F. C. (1979). The crystal chemistry of the amphiboles. X. Refinement of the crystal structure of ferroglaucophane and an ideal polyhedral model for clinoamphiboles. The Canadian Mineralogist, 17, pp. 1-10.
Formula: Al1.902 Ca0.15 Fe2.277 Mg1.031 Na1.72 O24 Si7.92
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al24 Fe10 Mg6 O48 Si16 (Al12 Fe5 Mg3 O24 Si8)
Multiplicity: 1