The word can be utilized synonymously with "volcanic ash." It's mined from volcanic ash deposits, or it might be made by crushing rock pumice. Yow will discover a pumice stone at your local pharmacy, Office retail outlet, or maybe the personal care area for the food market. They’re readily available https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/