Arrojadite

Fe_15.18H_0.5K_1.72Na_4.42O₅₀P₁₂

Yakubovich, O. V.Matviyenko, Y. N.Simonov, M. A.Melnikov, O. K.

Vestnik Moskovskogo Universiteta Geologiya (1986) 41, 36-47

a=16.53Å   b=10.084Å   c=24.64Å

α=90°   β=105.75°   γ=90°