Fig. : Deconvolution of natrolite RRUFF R040022 spectrum. The OH-stretching region is decomposed into six q-Gaussian bands (red curves). The centers of the components are at 3220, 3331, 3396, 3477, 3541, 3609 cm -1 .The lower part of the image is showing the misfit, that is the difference between data (green) and the sum of components (yellow curve).