Home / Explore / Minerals / Erdite Minerals Erdite erdite NaFeS2·2H2O Erdite Mineral Specimen For Sale — via www.dakotamatrix.com · Source Overview Erdite is a mineral species (sulfide mineral). It crystallises in the monoclinic system. Nickel–Strunz class: 2.FD.20. Scientific references Erdite — Wikidata. https://www.wikidata.org/wiki/Q3731249 Link