Home / Explore / Minerals / Cesiodymite Minerals Cesiodymite cesiodymite CsKCu5O(SO4)5 Cesiodymite: Mineral information, data and localities. — via www.mindat.org · Source Overview Cesiodymite is a mineral species (oxosulfate mineral). It crystallises in the triclinic system. Scientific references Cesiodymite — Wikidata. https://www.wikidata.org/wiki/Q26202497 Link