[thirty] Pumice in powdered type was an component in toothpastes in ancient Rome.[31] Nail treatment was very important in ancient China; nails were being stored groomed with pumice stones, and pumice stones have been also made use of to get rid of calluses. Porosity: Pumice is extremely porous, with approximately https://socialicus.com/story4857123/not-known-facts-about-pumice-stone