Zinc phosphate (Zn3(PO4)2) is an inorganic chemical compound. Natural forms of zinc phosphate include minerals hopeite and parahopeite, Zn3(PO4)2·4H2O. A somewhat similar mineral is natural hydrous zinc phosphate called tarbuttite, Zn2(PO4)(OH). Both are known from oxidation zones of Zn ore beds and were formed through oxidation of sphalerite by the presence of phosphate-rich solutions. The anhydrous form has not yet been found naturally.