0
What rock is porous and lightweight and formed when lava cools quickly?
Wiki User
∙ 8y ago
Everyone's favorite--pumice.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What rock is porous and lightweightna formed when lava cools quickly?
Pumice.
What type of grains are formed when magma cools quickly at the surface of earth?
Small grains.
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
Why does basalt rocks cool slowly?
Basalt cools off quickly because it is formed under water.
How is opsidion rock formed?
When a volcano erupts the molten cools quickly it is also known as volcano glass
What types of crystal are formed if maltan rock cools quickly?
When a magma cools/solidifies, crystals are formed. The quicker the magma cools, the tinier the crystals. A granite for example, which is formed through slow cooling in the Earth's crust, consists out of big crystals. Contrary, magma erupting at the surface (which is then called lava) cools rapidly and consists out of tiny crystals. In extreme cases, the lava cools so rapidly that the resulting rock appears glassy. Hope this helps!
Fine-grained igneous rock that is formed when molten rock cools quickly and soildfies on Earths surface?
extrusive igneous rock
Does melted rock that cools quickly result in igneous rock with large mineral crystals?
No, melted rock that cools quickly result in igneous rock with large minerals because large crystals take time to form and the rocks that usually have them are the ones that were formed inside the earth.
What rock is formed when lava cools down?
igneous rock is formed when lava cools down
Melted rock that flows to the surface cools quickly forms?
Igneous rocks are formed when molten hot rock flows to the surface of the Earth and rapidly cools down. The crystals that form are rich in silicon and oxygen.
What is formed by magma cooling?
Intrusive igneous rock is formed when magma or lava cools quickly.
