The semi log scale, that we have used for diamond and graphite Raman spectrum analyses is enhancing the far-wing behaviour, and this is relevant for distinguishing q-Gaussians from other functions. In the study of diamond Raman spectra, we noted that the far-wings of Kaniadakis Gaussians, pseudo-Voigt and Voigt functions seem being more "Lorentzian" that those of the Tsallis Gaussians. In the cases here proposed for graphite, we can see that the wings are properly described by q-Gaussians, and therefore no further functions have been considered for fitting.