Home / Explore / Minerals / Leonardsenite Minerals Leonardsenite leonardsenite MgAlF5·2H2O Leonardsenite: Mineral information, data and localities. — via www.mindat.org · Source Overview Leonardsenite is a mineral species (halide mineral). It crystallises in the orthorhombic system. Scientific references Leonardsenite — Wikidata. https://www.wikidata.org/wiki/Q19860942 Link