Home / Explore / Minerals / Hubbardite Minerals Hubbardite hubbardite Mg(H2O)6[(UO2)2O(OH)(SO4)]2·8H2O Hubbardite: Mineral information, data and localities. — via zh.mindat.org · Source Overview Hubbardite is a mineral species. It crystallises in the orthorhombic system. Nickel–Strunz class: 7.EC.15. Scientific references Hubbardite — Wikidata. https://www.wikidata.org/wiki/Q136509679 Link