zeunerite

{{Infobox mineral | name = Zeunerite | category = Arsenate mineral | image = Zeunerite 2 on quartz Copper urano-arsenate Perry Jones Group Plumas County California 1969.jpg | alt = | caption = | formula = Cu(UO2)2(AsO4)2·(10-16)H2O | IMAsymbol = Zeu | molweight = | strunz = 8.EB.05 | dana = 40.02a.14.01 | system = Tetragonal | class = Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m) | symmetry = P4/nnc | color = Yellow-green, emerald-green | colour = | habit = Crystals flat tabular on {001}, commonly subparallel to micaceous | twinning = | cleavage = {001} perfect, {100}, distinct | fracture = | tenacity = | mohs = 2.5 | luster = Vitreous | streak = pale green | diaphaneity = Transparent, becoming translucent on dehydration | gravity = 3.2–3.4 | density = | polish = | opticalprop = Uniaxial (−) | refractive = nω = 1.610 – 1.613 nε = 1.582 – 1.585 | birefringence = δ = 0.028 | pleochroism = Visible | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence= | absorption = | melt = | fusibility = | diagnostic = | solubility = | other = 25px Radioactive | alteration = | references = }} Zeunerite is a green copper uranium arsenate mineral with formula Cu(UO2)2(AsO4)2·(10-16)H2O. It is a member of the autunite group. The associated mineral metazeunerite is a dehydration product of zeunerite.

Zeunerite occurs as a secondary mineral in the oxidized weathering zone of hydrothermal uranium ore deposits which contain arsenic. Olivenite, mansfieldite, scorodite, azurite and malachite are found in association with zeunerite.