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Massive pumice 'raft' spotted in the Pacific could help replenish Great Barrier Reef | Coral | The Guardian
PRIMER ON THE FLOATING PUMICE STONES & VOLCANIC DEBRIS ON THE SHORES OF BATANES PROVINCE: AFTERMATH OF THE AUGUST 2021 ERUPTION OF FUKUTOKU-OKANOBA SUBMARINE VOLCANO IN JAPAN
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Pumice stone mining on the island of Gyali between the islands of Kos and the volcanic island of Nis Stock Photo - Alamy
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