Parnauite

IMA formula: Cu₉(AsO₄)₂(SO₄)(OH)₁₀·7H₂O

Crystallography: Orthorhombic. Pmn2₁.  a = 3.0113 (4) Å, b = 14.259 (3) Å, c = 14.932 (2) Å. Z = 1.