Abstract: A method for recovering noble metal from scrap generated during the manufacture of noble metal units. The method includes providing a cast metal unit such as a dental crown or a jewelry item. The unit is made of some noble metal. The surface of the unit is prepared with an abrading element. A magnetically attractive particulate contaminated scrap is generated. The scrap includes some noble metal and particulate contaminate. The noble metal is magnetically separated from the contaminate. The system includes an abrading element and a rotary tool for operating the element at a speed sufficient to prepare the surface of the units. A collection unit is provided for operation of the element therein. The scrap generated includes a percentage of magnetically attractive contaminate. A refining unit is provided including a magnet positioned therein for magnetically removing the contaminate from the scrap.