Home / Explore / Minerals / Polyarsite Minerals Polyarsite polyarsite Na7CaMgCu2(AsO4)4F2Cl Polyarsite: Mineral information, data and localities. — via www.mindat.org · Source Overview Polyarsite is a mineral species (arsenate mineral). It crystallises in the monoclinic system. Scientific references Polyarsite — Wikidata. https://www.wikidata.org/wiki/Q80196815 Link