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Extrusive igneous rock is one of two different types of igneous rocks. The other kind is intrusive igneous rock. Intrusive igneous rock is formed when magma in Earth's lithosphere cools and hardens. Extrusive igneous rock is formed when lava on Earth's surface cools and hardens.
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Is Obsidian an extrusive rock or intrusive rock?
Yes it is extrusive love yall
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 pumice an extrusive rock?
Extrusive
Are basalt extrusive or intrusive?
Basaltic rock are true to be extrusive rock
What material does extrusive rock form?
Extrusive rock forms from cooling lava.
What is the most extrusive igneous rock?
Basalt is the most common extrusive igneous rock.
Which is not a common extrusive igneous rock?
There are so many rocks that can be classified as not a common extrusive igneous rock. The most common extrusive igneous rock is basalt. Extrusive rocks are formed as a result of lava solidifying.
Is schist an intrusive or extrusive rock?
Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.
Are extrusive rocks igneous rocks?
Yes! extrusive means that the igneous rock was forced to the surface at one time. not only are lava flows extrusive but also cinders and pumice that was airborn during eruption
Is basalt an intrusive rock or extrusive rock?
Extrusive. Solidifies above ground level.
Is a metamorphic rock intrusive or extrusive?
It is neither. Intrusive and extrusive are terms used to describe igneous rock.
Is extrusive a rock?
Igneous rocks can be categorized as either extrusive or intrusive.
