Home / Explore / Minerals / Cossaite Minerals Cossaite cossaite (Mg0.5,☐)Al6(SO4)6(HSO4)F6·36H2O Cossaite: Mineral information, data and localities. — via www.mindat.org · Source Overview Cossaite is a mineral species (sulfate mineral). It crystallises in the trigonal system. Scientific references Cossaite — Wikidata. https://www.wikidata.org/wiki/Q19833353 Link