Home / Explore / Minerals / Engelhauptite Minerals Engelhauptite engelhauptite KCu3(V2O7)(OH)2Cl Engelhauptite: Mineral information, data and localities. — via www.mindat.org · Source Overview Engelhauptite is a mineral species (vanadate mineral). It crystallises in the hexagonal system. Scientific references Engelhauptite — Wikidata. https://www.wikidata.org/wiki/Q19833532 Link