Citation: Makino, K.; Tomita, K. (1989). Cation distribution in the octahedral sites of hornblendes sample E-P from Einstodingen, Antarctica. American Mineralogist, 74, pp. 1097-1105.
Formula: Al2.04 Ca1.99 Fe0.9 H2 Mg4.1 Na1.89 O24 Si5.96
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 Fe10 Mg10 O48 Si16 (Al8 Fe5 Mg5 O24 Si8)
Multiplicity: 1