Citation: Hawthorne, F.C.; Oberti, R.; Sardone, N. (1996). Sodium at the A site in clinoamphiboles: The effects of composition on the patterns of order. Canadian Mineralogist, 34, pp. 577-593.
Formula: Al2.1 Ca0.47 F1.15 Fe1.45 H0.85 K0.03 Mg2.41 Na2.37 O22.85 Si7.04
Chemical name: (Na0.84 K0.03) (Na1.53 Ca0.47) (Mg2.41 Fe1.45 Al1.14) (Si7.04 Al0.96) O22 F1.15 (O H)0.85
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al12 F4 Fe10 H4 Mg10 O48 Si16 (Al6 F2 Fe5 H2 Mg5 O24 Si8)
Multiplicity: 1