Naldrettite is a mineral with a chemical formula of Pd₂Sb. It is named after Anthony J. Naldrett (born 1933), a professor at the University of Toronto, who has made significant contributions to the International Mineralogical Association (IMA). Naldrettite is a new intermetallic mineral from the Mesamax Northwest deposit, Ungava region, Québec, Canada. Mineralization takes place around the base of basaltic dyke margins. Naldrettite is economically important because of its chemical composition (Pd₂Sb). The sample in which the new mineral was discovered had high platinum group elements (PGEs) with palladium enrichment.