Joanneumite

IMA formula: Cu(C₃N₃O₃H₂)₂(NH₃)₂

Crystallography: Triclinic. P-1. a = 4.982(1) Å, b = 6.896(1) Å, c = 9.115(2) Å, α = 90.53(3)°, β = 97.85(3)°, γ = 110.08(3)°. Z = 1.