schreibersite, meteoritic mineral consisting of iron and nickel phosphide [(FeNiFe,Ni)3P] , which that is present in all iron meteorites. It most meteorites containing nickel-iron metal. In iron meteorites, it often is found in the form of plates and as shells around troilite nodulesnodules of troilite (an iron sulfide mineral). Rodlike schreibersite is called rhabdite and was once thought to be a separate speciesmineral. The crystals of both varieties belong to the tetragonal system. For detailed physical properties, see native element (table).