Home / Explore / Minerals / Hannayite Minerals Hannayite hannayite (NH4)2Mg3(PO3OH)4·8H2O Hannayite: Mineral information, data and localities. — via www.mindat.org · Source Overview Hannayite is a mineral species (phosphate mineral). Nickel–Strunz class: 8.CH.35. Scientific references Hannayite — Wikidata. https://www.wikidata.org/wiki/Q3783079 Link