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Pumice would fit the description of a gas filled extrusive igneous rock that cools quickly.

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What kind of rock is pumice?

Pumice is an igneous rock. Pumice is formed by hot lava filled with gas cools quickly and forms.


How does pumice form?

Pumice is an igneous rock that forms when magma traps gas bubbles and cools quickly. The gas dissipates and leaves the distinctive porous nature of the pumice


Is pumice igneous rock metamorphic rock or sedimentary rock?

Pumice is an igneous rock formed from volcanic eruptions. It is created when lava with high gas and water content rapidly cools and solidifies, trapping bubbles of gas inside. This rapid cooling results in a porous rock with a low density, making pumice able to float on water.


What gets trapped while the magma or lava is cooling making holes in the igneous rock?

Gas bubbles get trapped in the magma or lava as it cools, forming holes in the igneous rock. These holes are often filled with minerals, such as quartz or calcite, creating geodes or nodules.


Why do pumice and scoria have holes in them?

Pumice is acutally a volcanic rock. after the volcano erupts, the lava cools. It's mixed with water and cools very fast, which causes the water and air in the lava to be expelled quickly, causing holes.


What is lava blown into the air cools into small pieces of rock which are puffed up by gas?

igneous rock


Why pumice is porous?

Pumice forms when a volcano erupts gas-rich material. Some of this material forms a sort of foamy lava, filled with gas bubbles. This cools rapidly and solidifies with the bubbles left in place, forming a highly porous rock. In volcanic rock this texture is called vesicular.


What type of rock would have air pockets?

A type of rock that often has air pockets is pumice, which is formed from volcanic lava that cools quickly, trapping gas bubbles inside. These air pockets give pumice its characteristic lightweight and porous nature.


What happens when magma cools quickly?

Several different things depending on the speed of cooling: -Smaller crystals-the less time there is to cool, the smaller the crystals -vesicles-If the lava cools quick enough, the gas trapped inside the lava doesn't have time to explain leaving gas cavities in the igneous rock. -glassy texture-if the magma cools quick enough, crystals don't have time to form. [NB:there may be other causes which I haven't noted which may be added to this answer later in an edit]


Why is a filament light bulb not filled with oxygen?

A filament light bulb is not filled with oxygen because oxygen can cause the filament to burn quickly. The bulb is usually filled with an inert gas like argon to prevent the filament from burning out too quickly and to protect it from oxidation.


What causes igneous rocks to have holes?

Holes in igneous rocks are typically formed by gas bubbles getting trapped in the molten rock as it cools and solidifies. These trapped gas bubbles then escape as the rock solidifies, leaving behind cavities or holes.


What happens to pumice when it is ejected out of a volcano?

Pumice is ejected out of a volcano as a frothy, lightweight rock due to the rapid cooling and solidification of lava filled with gas bubbles. As it cools, the gas bubbles trapped inside create its characteristic porous and lightweight texture. Pumice can float on water due to its high porosity.