Alessandro Pacini, goldsmith specializes in archaeometallurgy. From 1992 to 2006 he directed with Edilberto Formigli seminars of archaeometallurgy in Murlo (Siena). Since 2011 he is lecturer at the School of Alta Formazione of the Opificio delle Pietre Dure in Florence. He has participated as a speaker in international conferences of archaeometallurgy. He has published books and articles in magazines archaeometallurgy.