Home / Explore / Minerals / Manganohörnesite Minerals Manganohörnesite manganohörnesite Mn²⁺3(AsO4)2·8H2O Manganohörnesite: Mineral information, data and localities. — via www.mindat.org · Source Overview Manganohörnesite is a mineral species (arsenate mineral). Nickel–Strunz class: 8.CE.40. Scientific references Manganohörnesite — Wikidata. https://www.wikidata.org/wiki/Q3844530 Link