Citation: Hawthorne, F. C.; Oberti, R.; Sardone, N. (1996). Sodium at the A site in clinoamphiboles: the effects of composition on patterns of order Sample: A11 - FE229 N.18. The Canadian Mineralogist, 34, pp. 577-593.
Formula: Al1.9 Ca1.78 Cr0.04 F0.04 Fe0.49 H1.96 K0.01 Mg3.69 Na0.944 O23.96 Si7.04 Ti0.02
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al14 Ca8 Cr4 F4 Fe18 H4 K8 Mg10 Na16 O48 Si16 Ti4 (Al7 Ca4 Cr2 F2 Fe9 H2 K4 Mg5 Na8 O24 Si8 Ti2)
Multiplicity: 1