[en] Full text: The goal of this work was to synthesize CaWO₄ crystals to study its photoluminescent properties (PL). The synthesis proceeded by the method of coprecipitation (CM) at 25°C/0.5 h and by the solvothermal method (SM) at 140°C/1h. The precursors were solubilized in 100 g of solvent in a proportion of 50 g H₂O/50 g of ethylene glycol. The powders synthesized by CM and SM, were characterized by X-ray diffraction (XRD), Raman spectroscopy, and UV-Vis spectroscopy and PL measurements. The DRXs show that the peaks were perfectly indexed to the scheelite-type tetragonal structure with space group I41/a (Inorganic Crystal Structure Database No. 018135). The synthesized via XRD powder with SM showed higher crystallinity due to heat treatment. Through the Raman analysis were detected 13 active modes for CaWO₄ (2Ag, 5Bg and 3Eg), vibrations within the clusters [WO₄ ], were observed in both synthesis and only three of type 1Au and 2Eg were not detected due to its low intensity. The energy band gap optical (E_gap) was estimated by the proposed Tauc and Wood method . The values obtained were 5.53 eV for both. PL emission at room temperature were observed after the process of excitation wavelength of 350 nm. The CM has synthesized via PL emission in the blue region (491 nm) and the synthesized via SM emission PL in the green region (503 nm). Emissions are related to the degree of structural defects of the material introduced, resulting in different processes of electron transfer, due to different distributions of intermediate energy levels between the valence band and the conduction band. It is believed that this ratio of order and disorder is due to the thermal treatment. (author)