The material cools so swiftly that atoms in the melt are unable to prepare them selves into a crystalline structure. Consequently, pumice is an amorphous volcanic glass generally known as a "mineraloid." “They are available in numerous sizes and styles and have many residence uses, from body care to scrubbing https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/