Yellow and red colored glass is usually obtained by a staining process, in the fields of art and craft. It consists
in the application at the glass surface of either red ochre mixed with silver sulfate to obtain the color yellow
or copper sulfate to obtain the color red, both applications being followed by an annealing treatment. These
treatments lead to noble metal nanoparticle formation. The determination of the nanoparticle properties is of
great interest in order to correlate the nanoparticles size, shape, distance to the color dot