Home / Explore / Minerals / Giniite Minerals Giniite giniite Fe²⁺Fe³⁺4(PO4)4(OH)2·2H2O Giniite: Mineral information, data and localities. — via www.mindat.org · Source Overview Giniite is a mineral species (phosphate mineral). It crystallises in the monoclinic system. Nickel–Strunz class: 8.DB.50. Scientific references Giniite — Wikidata. https://www.wikidata.org/wiki/Q3764512 Link