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1. geologyscience.com › rocks › igneous-rocksPumice | Properties, Composition, Formation, Uses

   geologyscience.com › rocks › igneous-rocks

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   Aug 16, 2023 · Composition : felsic (rhyolitic) Color: white to light-gray or light-tan. Cooling Rate : rapid, extrusive. Intrusive Equivalent: granite. Other Characteristics : very light and will float on water. Minerals: Feldspar, augite, hornblende, zircon. Contents. Pumice Composition. Pumice Formation. Volcanic Gases and Density. Shipping around the World.

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3. en.wikipedia.org › wiki › PumicePumice - Wikipedia

   en.wikipedia.org › wiki › Pumice

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   Pumice ( / ˈpʌmɪs / ), called pumicite in its powdered or dust form, is a volcanic rock that consists of extremely vesicular rough-textured volcanic glass, which may or may not contain crystals. It is typically light-colored.

4. geology.com › rocks › pumicePumice: Igneous Rock - Pictures, Definition & More - Geology.com

   geology.com › rocks › pumice

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   Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions. It is used as aggregate in lightweight concrete, as landscaping aggregate, and as an abrasive in a variety of industrial and consumer products.

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5. www.britannica.com › science › pumicePumice | Volcanic Glass, Uses, Formation, Properties

   www.britannica.com › science › pumice

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   Jun 4, 2024 · Pumice, a very porous, frothlike volcanic glass that has long been used as an abrasive in cleaning, polishing, and scouring compounds. It is also employed as a lightweight aggregate in precast masonry units, poured concrete, insulation and acoustic tile, and plaster. Pumice is pyroclastic igneous.

   • Author: The Editors of Encyclopaedia Britannica

6. geologytutor.com › rocks › the-rock-that-floats-onThe Rock That Floats on Water: Pumice - Geology

   geologytutor.com › rocks › the-rock-that-floats-on

   Feb 15, 2024 · Formed during explosive volcanic eruptions, pumice is a type of igneous rock that emerges when frothy magma cools rapidly, trapping gas bubbles within its structure. As the magma solidifies, it forms a lightweight, porous rock with a distinctive spongy texture.

7. rockhoundresource.com › pumicePumice: Identification, Pictures, & Info for Rockhounds

   rockhoundresource.com › pumice

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   While pumice is a clearly defined rock type, it comes in many shapes and sizes and can sometimes be hard to distinguish from closely related rocks like scoria. I’ll walk you through how to identify pumice, what it looks like, and where it can be found.

8. People also ask

   Why is pumice a porous rock?

   • Formed during explosive volcanic eruptions, pumice is a type of igneous rock that emerges when frothy magma cools rapidly, trapping gas bubbles within its structure. As the magma solidifies, it forms a lightweight, porous rock with a distinctive spongy texture.

   The Rock That Floats on Water: Pumice - Geology

   geologytutor.com/rocks/the-rock-that-floats-on-water-pumice/

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   What does pumice look like?

   • Pumice: This specimen shows the frothy vesicular texture of pumice. It has a specific gravity of less than one and will float on water. It is about five centimeters (two inches) across. What is Pumice? Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions.

   Pumice: Igneous Rock - Pictures, Definition & More - Geology.com

   geology.com/rocks/pumice.shtml

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   How big is pumice?

   • It is about five centimeters (two inches) across. What is Pumice? Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions. It is used as aggregate in lightweight concrete, as landscaping aggregate, and as an abrasive in a variety of industrial and consumer products.

   Pumice: Igneous Rock - Pictures, Definition & More - Geology.com

   geology.com/rocks/pumice.shtml

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   Is pumice a rock?

   • Unlike most igneous rocks which are made of well-defined crystals, pumice is actually a volcanic glass with no crystal structure. Most people know pumice for its characteristic ‘bubbly’ texture, but that often isn’t enough to reliably call a rock ‘pumice’. So what does pumice look like?

   Pumice: Identification, Pictures, & Info for Rockhounds

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9. www.thoughtco.com › pumice-rock-4588534What Is Pumice Rock? Geology and Uses - ThoughtCo

   www.thoughtco.com › pumice-rock-4588534

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   Mar 10, 2019 · Pumice is an igneous rock that forms when magma suddenly depressurizes and cools. Essentially, pumice is a solid foam. It is light enough to float on water until it becomes waterlogged. Pumice occurs worldwide wherever explosive volcanic eruptions have occurred. Leading producers include Italy, Turkey, Russia, United States, and Greece.