Home / Explore / Minerals / Gupeiite Minerals Gupeiite gupeiite Fe3Si Gupeiite: Mineral information, data and localities. — via www.mindat.org · Source Overview Gupeiite is a mineral species (silicide mineral). It crystallises in the cubic system. Nickel–Strunz class: 1.BB.30. Scientific references Gupeiite — Wikidata. https://www.wikidata.org/wiki/Q3779836 Link