Cyrilovite

Cyrilovite (NaFe₃(PO₄)₂(OH)₄•2(H₂O)) is a hydrous sodium iron phosphate mineral. It is isomorphous and isostructural with wardite, the sodium aluminium counterpart.

Cyrilovite is found in granitic pegmatites. It was first discovered in 1953 in a pegmatite at Cyrilov, near Velké Meźiřiči, West Moravia, Czech Republic.