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Natural Stones, concept of natural phenomena. Volcanic Lava Rock on black background. Zoom out. Close out. High quality. Amazing natural phenomena. Mound of unusual black stones on black background.

A “raft” of floating pumice rock the size of Manhattan is drifting towards Australia, bringing along with it new marine life that could help with the recovery of the Great Barrier Reef’s ...

A ‘raft’ of pumice rock the size of Birmingham has been spotted in the Pacific ocean. The floating sheet is more than 150 square kilometres large and was caused by an underwater volcano which ...

A HUGE floating mass of pumice rocks has been discovered by sailors as they made their way to Fiji. The pumice raft the size of Paris completely took over the water surrounding their boat and could… ...

Pieces of a giant pumice 'island' once twice the size of Manhattan have started washing ashore in Australia. They originated in an underwater volcano that erupted near Tonga, nearly 2,000 miles away.

When magma rich in gases is violently ejected, it cools and solidifies rapidly while the trapped gases create a frothy texture. This results in pumice, a rock that is so light it can float on water.

The stretch of golf-ball-size pumice rocks was first spotted this week by a New Zealand air force plane about 1,000 kilometers (620 miles) northeast of Auckland. The rocks stretch for about 26,000 ...