The material cools so quickly that atoms in the melt are not able to prepare them selves into a crystalline structure. Consequently, pumice is surely an amorphous volcanic glass generally known as a "mineraloid." Pumice is usually valued in metaphysical circles for its associations with cleaning and renewal, provided its https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/