Izoklakeite

Bi_11.536Cu_1.3Fe_0.7Pb_27.684S₅₇Sb_6.78

Armbruster, T.Hummel, W.

American Mineralogist (1987) 72, 821-831

a=34.221Å   b=37.933Å   c=4.063Å

α=90°   β=90°   γ=90°