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: A9 - BM47 N.1. The Canadian Mineralogist, 34, pp. 577-593.
Formula: Al1.12 Ca1.48 Cr0.28 F0.06 Fe0.73 H1.94 K0.176 Mg3.69 Na1.12 O23.94 Si7.24 Ti0.1
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al14 Ca8 Cr4 F4 Fe18 H4 Mg10 Na8 O48 Si16 Ti4 (Al7 Ca4 Cr2 F2 Fe9 H2 Mg5 Na4 O24 Si8 Ti2)
Multiplicity: 1