Fenaksite

FeKNaO₁₀Si₄

Rozhdestvenskaya, I. V.Bannova, I. I.Nikishova, L. V.Soboleva, T. V.

Doklady Earth Sciences (2004) 398, 1029-1033

a=8.142Å   b=9.954Å   c=6.983Å

α=100.21°   β=114.13°   γ=105.87°