the invention relates to a method for producing an article from agglomerated stone , for example a slab for construction or decoration , comprising the following steps : bringing into contact an inorganic filler , a polyester resin precursor composition and a powdered electrically conductive component ; mixing same to produce a uniform mass ; distributing part of the mass on a substrate ; pressing the distributed mass in a vibro - compaction press under vacuum conditions ; and hardening the mass by means of polymerisation of the polyester resin .