noun
- a soft, decomposed limestone used as a fine abrasive for polishing metals and other materials
Usage: technical
Examples
- The jeweler used rottenstone to polish the silver bracelet to a brilliant shine.
- Rottenstone is particularly effective for removing scratches from brass fixtures.
- The antique restorer applied rottenstone with a soft cloth to clean the old metal hardware.
- Fine rottenstone powder can be mixed with oil to create a polishing paste.
- Craftsmen have used rottenstone for centuries to achieve mirror-like finishes on metal surfaces.