Tags: Chemical Substance, Mineral.
Cornubite is a rare secondary copper arsenate mineral with formula: Cu5(AsO4)2(OH)4. It was first described for its discovery in 1958 in Wheal Carpenter Gwinear Cornwall England UK. The name is from Cornubia the medieval Latin name for Cornwall. It is a dimorph of Cornwallite and the arsenic analogue of pseudomalachite.