Most pumice erupts from magmas which can be remarkably charged with gas and possess a rhyolitic composition. Almost never, pumice can erupt from gas-charged magmas of basaltic or andesitic composition. Then, rub a dry pumice stone in excess of the pilling in round motions. Will not press far too challenging https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/