The phrase may be used synonymously with "volcanic ash." It is mined from volcanic ash deposits, or it may be produced by crushing rock pumice. Whilst you’re soaking your skin, also soak your pumice stone in heat h2o. In no way use a dry pumice stone on your skin. A https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/