Citation: Piilonen, P. C.; McDonald, A. M.; Lalonde, A. E. (2003). Insights into astrophyllite-group minerals II: Crystal chemistry Note: sample NOR1, nepheline syenite pegmatite. The Canadian Mineralogist, 41, pp. 27-54.
Formula: Ca0.179 F0.5 Fe4.207 H8 K1.828 Mg0.075 Mn1.774 Na0.547 Nb0.356 O30 Rb0.172 Si8 Ti1.644
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F Fe5 H4 Mg Mn2 Na2 Nb2 O30 Si8 Ti2 (F Fe5 H4 Mg Mn2 Na2 Nb2 O30 Si8 Ti2)
Multiplicity: 1