WWW-Mincryst References:

 Structure:Raszvetaeva R.K., Andrianov V.I. (1986);
* Kristallogr., 31, 1, 82-87;
 Unit cell parameters: $Na4.5 Mn0.45 Zr0.25 Ca0.6 K0.2 Ti6.6 Fe.6 Nb.8 Si8 O44 H16$

Authors recommend next format of references to WWW-MINCRYST -

to this Card:(WWW-MINCRYST, MURMANITE-3006) OR
to WWW-MINCRYST as resource:WWW-MINCRYST (2020). Crystallographic and Crystallochemical Database for minerals and their structural analogues