Home / Explore / Minerals / Koenenite Minerals Koenenite koenenite Na4Mg9Al4Cl12(OH)22 Koenenite: Mineral information, data and localities. — via www.mindat.org · Source Overview Koenenite is a mineral species (halide mineral). It crystallises in the trigonal system. Nickel–Strunz class: 3.BD.25. Scientific references Koenenite — Wikidata. https://www.wikidata.org/wiki/Q3816130 Link