[30] Pumice in powdered kind was an component in toothpastes in historical Rome.[31] Nail care was extremely important in historic China; nails have been kept groomed with pumice stones, and pumice stones ended up also utilized to eliminate calluses. Rub the pumice stone in circular motions over the calloused spot. https://bookmarkinglife.com/story4975214/the-best-side-of-pumice-stone