Crystal data for zinc oxysulphate [Zn₃O(SO₄)₂]

Zinc oxysulphate [Zn₃O(SO₄)₂] crystallizes with a monoclinic unit cell, a = 7.867 (7), b= 6.700 (7), c = 7.374 (7) Å, β = 117.3 (1)°, Z = 2, space group P2₁ or P2₁/m, D_m 3.89, D_x = 3.887 g cm⁻³. An indexed powder pattern is given.