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Andesite are fine-grainedextrusive, igneous volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, such as hornblende, pyroxene or biotite.
(Refer to Geology.com -Igneous Rocks)
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Is andesite sandstone?
No. Andesite is a volcanic rock.
How old is andesite?
Andesite is not any age in particular. Some deposites of andesite may be hundreds of millions of years old. However, since andesite is volcanic, some andesite rocks may only be minutes old.
Is andesite a mineral?
No. Andesite is an extrusive igneous rock.
Is Andesite an igneous?
Yes. Andesite is an extrusive igneous rock.
Is andesite plutonic?
No. It is volcanic. The plutonic equivalent of andesite is diorite.
Is andesite phaneritic or aphanitic?
Andesite may be aphanitic or porphyritic.
Are diorite and andesite similar?
Yes. Diorite and andesite are igneous rocks with the same composition. Andesite is the extrusive equivalent of diorite, which is intruisive.
Is andesite an extrusive rock?
Yes. Andesite is the extrusive equivalent of diorite
Which volcanoe have eruptions of andesite and dacite?
Andesite and dacite are produced by stratovolcanoes.
Is andesite intusive?
No. Andesite is an extrusive rock. Its intrusive equivalent is diorite.
Is andesite basic or acid?
Andesite has an intermediate composition between "basic" and "acid."
What is the difference of andesitic and andesite?
Andesite is a type of extrusive igneous rock with moderate levels of silica. Andesitic is an adjective used to describe volcanic material with the composition of andesite. For example, andesitic lava will cool to form andesite.
