Most pumice erupts from magmas which might be very billed with fuel and have a rhyolitic composition. Not often, pumice can erupt from fuel-billed magmas of basaltic or andesitic composition. You'll find a pumice stone at your local pharmacy, Office store, or perhaps the personal treatment section at the food https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/