What is Pumice? - WorldAtlas

This porous volcanic rock can actually float on water.

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Pumice - Wikipedia

What is Pumice? - WorldAtlas

What if there was a land connection of Crete Isle to Peloponnesus via the two Cythera Islands? Could it be nevertheless possible to have the Minoan civilization so developed and so well

Pumice, Definition, Texture & Uses - Video & Lesson Transcript