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Not all lava rock is pumice. Lava rock is a term used synonymously with pumice by some material suppliers. Actually though, any rock formed from cooling lava would be considered a 'lava' rock and would include rocks like pumice, obsidian, and basalt. Only lava has a density less than that of water, allowing it to float.

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16y ago

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Are pumice and lava rock the same thing?

Pumice is a type of rock that is made up from sand particles.The stones on beaches eroded against each other to produce sand , some sand is dragged out to the middle of the ocean and deposited on the sea bed , animals like fish die and lay here to. Over hundreds of years more sand has been deposited on top and the weight increase on the layer we spoke about then with the high pressure they form the pumice stone and other stones such as limestone.


What is a light rock formed from lava?

Pumice.


What kind of rock is pumice?

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


What is a 6 letter word for lava rock?

pumice


What An igneous rock that is formed from lava is called?

it is called pumice.


What type of rock is formed after magma or lava is cooled?

pumice


What does pumice mean for rocks and minerals?

Pumice is an extrusive igneous rock which forms when the lava is very frothy from a lot of gas exsoliving out of the lava, it is sort of like an extrime vesicular rock.


Frothy volcanic rock formed by expanding gas bubbles in erupting lava.?

The rock formed is very light and is known as pumice or pumice stone.


What rock is porous and lightweightna formed when lava cools quickly?

Pumice.


Is pumice a mineral?

Pumice is a textural term for a volcanic rock that is a solidified frothy lava typically created when super-heated, highly pressurized rock is violently ejected from a volcano


What is the name of the igneous rock that is light enough to float?

Pumice, an extrusive igneous rock. Pumice is very porous and therefore allows air to get trapped when it is in water. Pumice stones are formed when lava cools quickly, they are usually white in colour and have a heavily pitted surface.


What is the lightest rock in the world?

The lightest rock in the world is pumice. Pumice is a type of volcanic rock that is formed when lava with high water and gas content is rapidly cooled. It is so light that it can float on water.