On 19 November 2015 we had the honor of being paid a visit at the lab by an outstanding guest, professor Wiesław Domasłowski, our college teacher and the founder of stone heritage conservation treatment methodology. We had an opportunity to present to him our analitical apparatus, the results of heritage digitalization performed by our team and laser in action – it happened so that we were removing deposits from a beautiful, yet highly challenging piece, an amber reliquary cross. We hope to have answered Professor's inquisitive questions satisfactorily.