Home / Explore / Minerals / Ertixiite Minerals Ertixiite ertixiite Na2Si4O9 Ertixiite — Mineral Guide — MineralFYI — via mineralfyi.com · Source Overview Ertixiite is a mineral species (unclassified silicate). It crystallises in the cubic system. Nickel–Strunz class: 9.HA.05. Scientific references Ertixiite — Wikidata. https://www.wikidata.org/wiki/Q3732637 Link