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What Is Pumice Made Of?
Pumice is formed when volcanoes erupt explosively. It comes from the same kind of magma which would form granite or rhyolite, that is, a magma that contains lots of silica (quartz). Magma with lots of silica is usually thick and sticky.Jul 4, 2010
Pumice
TMart Science Geology Series of rock types. Igneous rock
What is Pumice?
Description of
Rock that floats in water: PUMICE (stone from volcanic eruptions)
All rocks but one,
