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Rocks float when their density is lower than that of the surrounding medium. E.g. in water, pumice floats; in an alkaline magma, felspathoids might float; in a basaltic magma, plagioclase would float at pressures greater than about 5kbar (! feldspathoids and plagioclase aren't rocks, these are minerals).
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What is a light porous volcanic rock called?
Pumice. It floats on water due to its vesicular structure.
What is a lightweight rock that floats?
Pumice
Why pumice is the only rock that floats?
it is lighter than the weight of water
What is the name of a very porous igneous rock that is so light that it floats on water?
Pumice is basically lava froth, an extrusive rock frozen as its dissolved gases come out of solution. It looks solid but often floats on water.
How can there be a rock that can float?
Floating (on water) happens when the item place in the water is less dense than the water. The density of the rock called "pumice" is less than that of water so pumice floats. Pumice is a volcanic rock made form a lava "foam" it is solidified rock froth and therefore is very light.
What do you called an igneous rock that floats on water due to the presence of many gas bubble holes.?
Pumice is such a rock.
White rock from Turkey it is light and it floats however it is hard like a rock does anyone know what this rock is called?
Sounds like pumice.
What is a light porous volcanic rock called?
Pumice. It floats on water due to its vesicular structure.
What is a lightweight rock that floats?
Pumice
Where do you find a rock that floats?
The on rock that floats is a pumice. It is a kind of volcanic glass. The reason it floats is because it has big pours all over it. I'm only in 8th grade and I still know the answer.
What are the floats called in spanish?
Floats are called "carrozas" in Spanish.
What is the name of a very porous igneous rock so light that it floats?
pumiceThe type of igneous rock that floats is called Pumice. It isn't lighter than other rocks, just less dense because it has lots of very small air bubbles trapped in it. You can see these if you look at the exterior of the rock.
The extrusive igneous rock that floats in water?
Pumice
What is the earth's surface floating on?
The Earth's crust floats on top of a layer called the mantle, which is composed of hot liquid rock (which sometimes erupts out of volcanoes, and is called magma).
Pumice is a volcanic rock that floats Its density is?
With out knowing further knowledge about the rock it is unable to determine the exact density. However, since the rock floats, presumably in water, the density must be less then 1.00g/L.
What rock floats on water?
Floating rocks: pumice. Non-floating rocks: all but pumice. Pumice can float on water because its density is so low, due to trapped bubbles of air which formed during its solidification from lava.
Does a lodestone float?
No. If a rock floats it is most likely pumice.
