Home / Explore / Minerals / Hoperanchite Minerals Hoperanchite hoperanchite (NH4)2(S2O3) Hoperanchite: Mineral information, data and localities. — via www.mindat.org · Source Overview Hoperanchite is a mineral species. It crystallises in the monoclinic system. Nickel–Strunz class: 7.J0.. Scientific references Hoperanchite — Wikidata. https://www.wikidata.org/wiki/Q129574730 Link