The phrase may be used synonymously with "volcanic ash." It is mined from volcanic ash deposits, or it can be produced by crushing rock pumice. There's two kinds of exfoliation: chemical, in which you use skin treatment merchandise or substances to gently clear away dead skin cells, and mechanical, where https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/