(Cu0.27 Fe0.73) (S O4) (H2 O)5

Cu_0.27Fe_0.73H₁₀O₉S

Peterson, R.C.Roeder, P.L.Zhang Yousheng

Canadian Mineralogist (2003) 41, 671-676

a=6.292Å   b=10.632Å   c=6.072Å

α=82.63°   β=110.02°   γ=105.19°