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Pumice

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1.

PUMICE ROCKS

By Malachi And Carsyn
Photo by LassenNPS
2.

A rush of gas comes out and blows the magma out as lava. This lava solidifies rapidly and comes falling back to earth as pumice rock.

Photo by gnuckx
3.

The main use of pumice is to make lightweight concrete blocks. Another use of pumice is in landscaping.

Photo by einsfuenfsechsvier
4.

Pumice is found in the United States of America.

Photo by shriak

Carsyn Roughton