The phrase can be utilized synonymously with "volcanic ash." It is mined from volcanic ash deposits, or it can be made by crushing rock pumice. Need a deeper clean up? Delponte suggests spraying pumice stones with 70 per cent alcohol to ensure there is no potential for bacterial progress. If https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/