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USGS CMG InfoBank: Pumice

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Comment: 09:34 - 09:51 (00:17)
Source: Annenberg/CPB Resources - Earth Revealed - 13. Volcanism
Keywords: pumice, eruption, viscosity, gas, magma, volcano

Our transcription: "Pumice" is a special type of volcanic rock formed from the eruption of viscous and highly gaseous magma.
It has a frothy consistency and is so full of air pockets that it can float in water.

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