Rotten stone

Rotten stone is a type of naturally occurring limestone that has undergone a specific weathering process, resulting in a fine powder used primarily as a polishing agent. It consists mainly of calcium carbonate, which gives it its soft and abrasive characteristics. Historically, rotten stone was used in woodworking and metalworking, where it served as a gentle abrasive for polishing surfaces to a smooth finish. Due to its fine texture, it is suitable for achieving a high-gloss result without scratching delicate surfaces.