Citation: Rastsvetaeva, R. K.; Tamazyan, R. A.; Pushcharovskii D Yu; Nadezhina, T. N.; Voloshin, A. V. (1994). K-nenadkevichite, a new representative of the nenadkevichite-labuntsovite series. Crystallography Reports, 39, pp. 908-914.
Formula: H10.3 K2.98 Na1.22 Nb2.2 O31.15 Si8 Ti1.8
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Nb8 O56 Si16 Ti8 (Nb O7 Si2 Ti)
Multiplicity: 1