Home / Explore / Minerals / Karpenkoite Minerals Karpenkoite karpenkoite Co3(V2O7)(OH)2·2H2O Karpenkoite: Mineral information, data and localities. — via www.mindat.org · Source Overview Karpenkoite is a mineral species (hydrous vanadate mineral). It crystallises in the trigonal system. Scientific references Karpenkoite — Wikidata. https://www.wikidata.org/wiki/Q20706675 Link