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Because it is full of holes and air spaces. This is because it forms while bubbles of gas are trapped in quick-cooling lava.

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14y ago

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Name an extrusive rock with a very low density?

Pumice is an extrusive igneous rock with a density less than that of water.


What stone can float on water?

Pumice stones will, these are low density rocks formed by volcanoes


What is the name of The rock which do not sink in water?

pumice stone


Which stone did not sink in the water?

Pumice is a type of stone that floats on water due to its high porosity and low density.


Which type of stone is lighter than water?

Pumice is a type of volcanic rock that is lighter than water. This is due to the presence of air bubbles trapped within the rock's structure, giving it a low density that allows it to float on water.


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 is an example of a mineral with low specific gravity?

One example of a mineral with low specific gravity is pumice. Pumice is a volcanic rock formed from frothy lava with numerous gas bubbles trapped within its structure, resulting in a low density and specific gravity.


What rocks float?

Pumice is a type of rock that can float on water due to its high porosity and low density. It is formed from volcanic eruptions and is commonly found near volcanic regions.


How heavy is pumice?

Pumice, being mostly composed of air bubbles, is surprisingly light for a rock. So light, in fact, that it can float on water.


Why does pumice float in water using buoyancy and density?

Pumice floats in water because it has a low density. This is due to the presence of gas bubbles trapped in its porous structure during its formation. The buoyant force acting on the pumice is greater than its weight, allowing it to float on the water's surface.


What is the density of 1.3kg of pumice rock?

The density of pumice rock can vary, but on average it is around 0.25-0.55 g/cm^3. To find the density of 1.3kg of pumice rock, you would need to know the volume of the pumice rock. By dividing the mass (1.3kg) by the volume, you can calculate the density.


Which of the following has the lowest density?

air