[30] Pumice in powdered kind was an component in toothpastes in historic Rome.[31] Nail care was important in ancient China; nails were being stored groomed with pumice stones, and pumice stones have been also applied to eliminate calluses. Due to its porous construction, pumice is used in soil mixes for https://bookmarksfocus.com/story5011862/considerations-to-know-about-pumice-stone