Gd3+ doped fluorapatite (FAp) had been prepared hydrothermally at 160 °C in presence of an additive, 1,2,3,4-butanetetracarboxylic acid (BTCA). Morphology, phase and photoluminescence properties of samples were characterized by powder X-ray diffraction, FT-IR, SEM and fluorescence spectroscopy. Polycrystalline FAp : Gd3 + powder transformed to rod shaped crystals with influence of BTCA. After photoexcitation at 260 nm, FAp : Gd3 + emited ultraviolet emissions at 357 nm and 395 nm. Photoluminescent intensity of FAp : Gd3+ diminished with increasing concentration of BTCA. © 2016 Scientific Publishers.