The term can be utilized synonymously with "volcanic ash." It is actually mined from volcanic ash deposits, or it may be made by crushing rock pumice. This hurry of gasoline within the vent shreds the magma and blows it out like a molten froth. The froth rapidly solidifies mainly because https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/