Ferriphoxite

[(NH4)2K(H2O)][Fe3+(HPO4)2(C2O4)]

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Ferriphoxite is a ferric iron-bearing phosphate carbonate fluoride mineral of the phosinaite group, crystallizing from alkaline pegmatites and carbonatite-associated rocks. It forms pale yellow to colorless prismatic crystals with a complex mixed-anion structure. The mineral is of scientific interest for its unusual combination of phosphate, carbonate, and fluoride in a single crystal structure, rare in natural mineral systems.

Frequently Asked Questions

What is the chemical formula of Ferriphoxite?
The chemical formula of Ferriphoxite is [(NH4)2K(H2O)][Fe3+(HPO4)2(C2O4)].