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Is Obsidian an extrusive rock or intrusive rock?

Anonymous

∙ 12y ago

Updated: 8/11/2023

Yes it is extrusive love yall

Wiki User

∙ 13y ago

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More answers

no

Wiki User

∙ 14y ago

Extrusive

Wiki User

∙ 12y ago

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Q: Is Obsidian an extrusive rock or intrusive rock?

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Continue Learning about Natural Sciences

Is obsidian a intrusive or extrusive igneous rock?

Andesite is considered an extrusive igneous rock.

Is dacite intrusive or extrusive?

Dacite can be both intrusive and extrusive. Intrusive dacite forms when magma solidifies beneath the Earth's surface, while extrusive dacite forms when lava erupts on the Earth's surface and cools quickly.

What are the two category's of igneous rock?

Intrusive and Extrusive

What type of rock is formed from cooled melted rock?

Igneous rock is formed from cooled melted rock. It can be further classified as intrusive (formed below the earth's surface) or extrusive (formed on the earth's surface). Examples include granite, basalt, and obsidian.

Is marble an extrusive or an intrusive rock?

Neither. The terms intrusive and extrusive apply to igneous rocks; marble is metamorphic.

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Related Questions

Is obsidian a intrusive or extrusive rock?

it is A instrsive! lol

Is obsidian intrusive or extrusive rock?

Obsidian is an extrusive igneous rock. It forms when lava cools rapidly at the Earth's surface, preventing the formation of large mineral crystals.

Is obsidian a intrusive or extrusive igneous rock?

Andesite is considered an extrusive igneous rock.

What trait is an intrusive igneous rock?

If a rock is intrusive, that means that it formed from magma inside the Earth. An example is granite. The opposite is extrusive, which forms from cooling lava from volcanoes. An extrusive rock is obsidian.

Is obsidian extrusive rock?

No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.

Is basalt an intrusive rock or extrusive rock?

Extrusive. Solidifies above ground level.

Is obsidian intrusive or extrusive?

Obsidian is considered extrusive because it forms from quickly cooling lava on the Earth's surface, resulting in a fine-grained texture without visible crystals.

Is schist an intrusive or extrusive rock?

Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.

Is a metamorphic rock intrusive or extrusive?

It is neither. Intrusive and extrusive are terms used to describe igneous rock.

Are basalt extrusive or intrusive?

Basaltic rock are true to be extrusive rock

Is lava intrusive or extrusive?

Lava is extrusive, meaning it forms on the Earth's surface as a result of volcanic activity. It cools rapidly and solidifies quickly into volcanic rock, such as basalt or obsidian. Intrusive rock, on the other hand, forms below the Earth's surface from magma that cools slowly.

Is obsidian an instrusive or extrusive igneous rock how do you know?

Obsidian is an extrusive rock and is formed from rapidly cooling magma. Obsidian is also known as volcanic glass and one can find only sub-microscopic crystals in it. This is because it was cooled too fastly for large crystals to form. If the material that obsidian consists of were an intrusive rock and had a lot of time to cool down, one would find that it would be composed of easily visible crystals.

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