Home / Explore / Minerals / Metahohmannite Minerals Metahohmannite metahohmannite Fe³⁺2(SO4)2O * 4H2O Metahohmannite: Mineral information, data and localities. — via www.mindat.org · Source Overview Metahohmannite is a mineral species (sulfate mineral). Nickel–Strunz class: 7.DB.30. Scientific references Metahohmannite — Wikidata. https://www.wikidata.org/wiki/Q3855436 Link