Most pumice erupts from magmas that are extremely charged with fuel and have a rhyolitic composition. Rarely, pumice can erupt from fuel-charged magmas of basaltic or andesitic composition. Rub the pumice stone in circular motions more than the calloused spot. Use Light, round motions to slough absent the useless pores https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/