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What Evidence Would You Look For If Attempting To Classify A Piece of igneous Rock as Extrusive?
Wiki User
∙ 8y ago
Extrusive igneous rocks have very small crystal grains.
Wiki User
∙ 8y ago
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What characteristics are used to classify igneous rocks?
Intrusive and extrusive factors of an igneous rock classify them. The other factors are if they are vesicular, coarse, fine grained, glassy, or very coarse
What is the most extrusive igneous rock?
Basalt is the most common extrusive igneous rock.
What kind of igneous rocks for on earths surface?
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Is obsidian a intrusive or extrusive igneous rock?
Andesite is considered an 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.
What characteristics are used to classify igneous rocks?
Intrusive and extrusive factors of an igneous rock classify them. The other factors are if they are vesicular, coarse, fine grained, glassy, or very coarse
Is conglomerate intrusive or extrusive?
Neither. Conglomerate is a sedimentary rock. Intrusive and extrusive are descriptive terms used to classify igneous rocks.
What refers to the size of the crystals evident in the rock and is the property you use to classify igneous rocks is?
intrusive and extrusive
A lava flow is an example of an igneous rock one of the two main igneous rock groups?
It is an example of extrusive igneous rock.
What are igneous rocks formed at the earths surface called?
Extrusive igneous rocks.
What is the most extrusive igneous rock?
Basalt is the most common extrusive igneous rock.
What kind of igneous rocks for on earths surface?
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Is obsidian a intrusive or extrusive igneous rock?
Andesite is considered an 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.
What does intrusive and extrusive mean?
These two terms are used to classify igneous rock. Intrusive igneous rock has solidified from magma, below the surface of the Earth. Extrusive igneous rock has solidified from lava, at or near the surface of the Earth. Intrusive rock displays a coarse-grained rock texture, a result of the slow cooling of magma. Extrusive igneous rock will display either a fine or a glassy texture, depending on the speed of solidification of the lava.
Is tuff igneous sedimentary or metamorphic?
igneous (extrusive)
What kind of rock is formed after a volcano erupts?
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
