Nefedovite

Ca₄FNa₅O₁₆P₄

Sebals, M.Dorokhova, G. I.Pobedimskaya, E. A.Khomyakov, A. P.

Doklady Akademii Nauk SSSR (1984) 278, 353-357

a=11.644Å   b=11.644Å   c=5.396Å

α=90°   β=90°   γ=90°