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Pumice.
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∙ 14y ago
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A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
What rocks are formed from molten rock that has solidified?
Igneous rocks, which come in many different forms.
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is sedimentary rock made from solidified lava?
Rock that is formed from volcanoes are igneous rocks. Sedimentary rocks are formed from other layers of grains that are heaving and over millions of years have enough weight squish the grains into a proper rock. This is why the newest rocks are found at the top of layers.
Is obsidian a sedimentary rock igneous rock or a metamorphic rock?
obsidian is an igneous rock, it is not formed from sediment, or a rock going under heat and pressure for the second time it is formed when a volcano erupts and it cools very quickly giving it a smooth glossy surface like glass.
A type of rock formed by molten rock solidified?
igneous rock
A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
The solidified lava of a volcano belongs to which rock family?
igneous rocks are made of solidified lava.
What makes an igneous rock?
Solidified magma or lava is igneous rock.
Buoyant force of a rock submerged in water compared to the weight of the water displaced by the rock?
The buoyant force is equal to the weight of the displaced water.
What is igneous rock made of?
Solidified magma or lava.
Why does a rock has to sink?
A rock sinks because it is not buoyant. Buoyancy is whether or not something floats in water. There are three levels of buoyancy; buoyant, neutrally buoyant, and not buoyant. When something is buoyant, that means it has a lower density than water, causing it to float. When something is neutrally buoyant, that means it has roughly the same density as water, causing it to float half way between the bottom and the surface. Finally, when something is not buoyant (like a rock), that means that it has a higher density than water, causing it to sink to the bottom.
What rocks are formed from melted rock that has cooled and solidified?
Igneous rock. Hope I helped!
What is a igneaus rock?
Igneous rock is a rock that has solidified from previously melted material.The word from ignis meaning fire in the original Greek.Subdivided into Plutonic, which have solidified underground, and Volcanic which erupt as liquid (and ash) from the earth's surface.
What is solidified lava?
The term lava can still be used to describe a lava flow after it has solidified on the earth's surface. It forms igneous rock, one of the three main rock types on Earth.
Does Petros mean pebble or rock in Greek?
Petros means a collection of small rocks/pebbles. Typically, this collection is solidified into one larger rock. It's basically a rock made up of smaller solidified pebbles.
Which rock type forms from the solidification of magma?
Rock solidified from magma is classified as igneous rock.
