The evidences of screened geochemical zoning in the Alexandrinka copper-zinc-pyrite deposit are shown. In the endogenic dispersion pattern of proximal body foot the concentration of supra-ore elements (Hg, Ag, Sb, Pb, Cd and some others) on 1-2 orders exceeds their concentration in the supra-ore zone. Massive sulfide body is a mineral screen under which elements of under- and supra-ore complexes are in common precipitated.