Home / Explore / Minerals / Magnussonite Minerals Magnussonite magnussonite Mn10As6O18(OH,Cl)2 Magnussonite: Mineral information, data and localities. — via www.mindat.org · Source Overview Magnussonite is a mineral species (arsenite mineral). Nickel–Strunz class: 4.JB.15. Scientific references Magnussonite — Wikidata. https://www.wikidata.org/wiki/Q3843386 Link