Cacoxenite is an iron aluminium phosphate mineral with formula: Fe³⁺₂₄Al(PO₄)₁₇O₆(OH)₁₂·17(H₂O). Cacoxenite is associated with

iron ore Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the fo ...

s. The name comes from the Greek κăκός for "bad" or "evil" and ξένος for "guest" because the phosphorus content of cacoxenite lessens the quality of iron smelted from ore containing it.http://www.handbookofmineralogy.org/pdfs/cacoxenite PDF File. It was first described in 1825 for an occurrence in the Hrbek Mine,

Bohemia Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohem ...

, Czech Republic. It occurs as a secondary phase in oxidized magnetite and

limonite Limonite () is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently written as FeO(OH)·H2O, although this is not entirely accurate as the ratio of oxide to hydroxid ...

deposits. It also occurs in novaculites and in iron and phosphorus rich sediments. Cacoxenite-40667

References

Phosphate minerals Hexagonal minerals Minerals in space group 176 {{phosphate-mineral-stub