Also known as 'rotten stone' or brown rouge, Tripoli compound belongs in every workshop because of it's versatility and effectiveness. Metal polishing compounds that come in a wax, paraffin-oil or grease-based block/bar are often referred to generically as 'jeweller's rouge'. Rouge is French for red, and jeweller's rouge is a specific type of polishing compound that contains ferrous oxides (which give it the red colour) and is used most typically to polish precious metals. We offer several different compounds (including red jeweller's rouge!) that contain various minerals and particles that colour the block - each formulated for a specific cutting, colouring, polishing or buffing effect.