Home / Explore / Minerals / Jeankempite Minerals Jeankempite jeankempite Ca5(AsO4)2(AsO3OH)2(H2O)7 Jeankempite: Mineral information, data and localities. — via www.mindat.org · Source Overview Jeankempite is a mineral species (hydrous arsenate mineral). It crystallises in the triclinic system. Scientific references Jeankempite — Wikidata. https://www.wikidata.org/wiki/Q58824576 Link