Over time, jewellery can tarnish, darken and start looking dirty. One trick that many jewellers use to keep jewellery looking new is Red Rouge polishing powder. Red Rouge powder, also known as iron(III) oxide or ferric oxide, is a deep reddish brown powder that can safely polish jewellery without scratching it. Although used primarily on jewellery, this powder can also be used on metal, brass, copper, gold, silver and steel.
Turn your buffing wheel on and allow it to spin.
Press the Red Rouge polishing powder directly to the hand buffing wheel. According to READE Advanced Materials, the heat from the wheel "will be enough to transfer a small amount of the compound onto the wheel for polishing."
Lay the jewellery or metal out in front of you on a piece of cloth.
Buff the jewellery or metal using the hand wheel. Typically, you should use 1 tbsp of Red Rouge polishing powder for every 0.454kg. of metal.
Wipe the jewellery or metal off with a lint-free cloth.