Nanostructured copper-doped fluorapatite (Cux.Ca(10-x).(PO4)6.F2) having crystallite sizes of 19, 29 and 34 nm at x = 0.9, 0.4 and 0.0, respectively, was synthesized by planetary ball milling of CaO, P2O5, CaF2 and CuO ...