Fe2ioneita

Fe2ioneita is not a recognized mineral species. There is no published chemical analysis, crystallography, type specimen, or locality associated with this name in major mineral databases or the International Mineralogical Association (IMA) records. Consequently, Fe2ioneita is generally treated as an unverified or fictional designation rather than a confirmed mineral.

The form of the name suggests an iron-containing mineral, given the initial “Fe” and the typical mineral suffix “-ite,” but without formal description, data, or approval its composition and structure remain undefined. In practice, encountering the term usually points to a spelling error, a hypothetical or teaching example, or a misattribution rather than a valid mineral name.

In discussions or literature where Fe2ioneita appears, it is important to verify against authoritative sources. If a specimen or study claims this name, readers should check whether the work has undergone review by the IMA-CNMNC or whether the term is simply a misnomer for a known iron mineral such as hematite (Fe2O3), magnetite (Fe3O4), goethite (FeOOH), or ferrihydrite (Fe5HO8·4H2O).

See also: list of minerals, International Mineralogical Association, hematite, magnetite, goethite, ferrihydrite.