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Vesicular solidified lava, an extrusive igneous rock.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoPumice forms when it is shot out of a volcano. When it gets out it immediately hardens but still has little holes in it so that also gives it the ability to float on water
Wiki User
∙ 14y agoAn extrusive vesicular volcanic glass. An igneous rock.
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Where can you find pumice geode?
There is no such thing as a pumice geode. Pumice and geodes form under completely different conditions.
Why does pumice have no crystal structure?
Pumice is made of glass. Glass forms when molten rock cools too quickly for crystals to form.
Are rhyolite pumice and tuff from violent eruptions?
Pumice and tuff are the product of violent eruptions. Rhyolite is often, but not always produced by violent eruptions, but it can also form from slow, extrusive eruptions.
Why are there vesicles in pumice and scoria?
Both scoria and pumice form from molten material with gas trapped inside.The gas forms bubbles in the liquid, then the liquid solidifies, retaining the shape of the bubbles.
How did pumice get here?
how did pumice get here
Where can you find pumice geode?
There is no such thing as a pumice geode. Pumice and geodes form under completely different conditions.
Did pumice form underground?
No. Pumice forms above ground as frothy molten rock erupts from a volcano.
Whey are pumice crystal's small?
Pumice doesn't have crystals at all, as it cools too quickly for them to form.
What is the metamorphic form of pumice?
Pumice is easily broken down because of it contains numerous air pockets. The metamorphic forms of pumice are gneiss, schist and slate.
Why is pumice special?
Pumice is considered special because it contains volcanic glass. It is a powdered or dust form of volcanic rock and the way pumice is formed is very unique.
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
Why is pumice extrusive?
Because it is formed on the outside of the Earth (hense the 'ex') This means that magma comes out of the Earth and then it cools to form pumice.
Why does pumice have no crystal structure?
Pumice is made of glass. Glass forms when molten rock cools too quickly for crystals to form.
What is a solid form of lava is so frothy with gas when it reaches the surface?
That is pumice.
Why doesn't granite have air holes like pumice and scoria?
Pumice and scoria are volcanic rock. They form form the lava the erupts from the volcano and contains bubbles from gasses. These bubbles cause the cavities you're calling air holes.
The solid form of lava that is so frothy with gas when it reaches the surface is called?
pumice
Are rhyolite pumice and tuff from violent eruptions?
Pumice and tuff are the product of violent eruptions. Rhyolite is often, but not always produced by violent eruptions, but it can also form from slow, extrusive eruptions.
