Citation: Piilonen, P. C.; McDonald, A. M.; Lalonde, A. E. (2003). Insights into astrophyllite-group minerals II: Crystal chemistry Sample: RUS9, nepheline syenite pegmatite. The Canadian Mineralogist, 41, pp. 27-54.
Formula: Ca0.199 F0.5 H4 K Mg0.069 Mn6.169 Na0.475 Nb0.238 O30 Si8 Ti1.762
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F4 Mg4 Mn28 Na8 Nb8 O120 Si32 Ti8 (F Mg Mn7 Na2 Nb2 O30 Si8 Ti2)
Multiplicity: 1