Home / Explore / Minerals / Fenaksite Minerals Fenaksite fenaksite (K,Na)4(Fe,Mn)2(Si4O10)2(OH,F) Fenaksite: Mineral information, data and localities. — via www.mindat.org · Source Overview Fenaksite is a mineral species (inosilicate mineral). Nickel–Strunz class: 9.DG.70. Scientific references Fenaksite — Wikidata. https://www.wikidata.org/wiki/Q3742405 Link