Crystals of the CuCr₂Se₄ ferromagnetic spinel and spinel-based solid solutions are shown to form in glass-forming alloys of the Cu₂Se-As₂Se₃-Cr₂Se₃-Se system containing Cr₂Se₃ at a content greater than 0.005 mole fractions. The crystalline phases are identified by the magnetochemical method (from the Curie temperatures) and X-ray diffraction analysis. According to electron microscopy, the crystal sizes are equal to several micrometers. IR irradiation of the samples in a magnetic field leads to an increase in the magnetization. The excess magnetization disappears after the external magnetic field is removed.