K6 (Fe2 O6)

Fe₂K₆O₆

Riek, H.Hoppe, R.

Angewandte Chemie (German Edition) (1973) 85, 589-590

a=7.134Å   b=11.123Å   c=6.515Å

α=90°   β=102.3°   γ=90°