Home / Explore / Minerals / Ferroåkermanite Minerals Ferroåkermanite ferroåkermanite Ca2FeSi2O7 Ferroåkermanite — Mineral Guide — MineralFYI — via mineralfyi.com · Source Overview Ferroåkermanite is a mineral species. It crystallises in the tetragonal system. Nickel–Strunz class: 9.BB.10. Scientific references Ferroåkermanite — Wikidata. https://www.wikidata.org/wiki/Q134487640 Link