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It can be either. "Felsic" is not a specific type of rock but a general description of an ingeous rock's composition indicating high levels of silica and alkali feldspars.

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10y ago

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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 Felsic a Intrusive or Extrusive Rock?

Felsic rocks can be either intrusive or extrusive. Intrusive felsic rocks form underground when magma cools and solidifies slowly, creating large crystals. Extrusive felsic rocks form at the Earth's surface when volcanic lava cools quickly, resulting in fine-grained rocks like rhyolite.


Is Rhyolite Porphyry an intrusive or extrusive rock?

Rhyolite Porphyry is an intrusive rock, formed from the slow cooling of magma underground. It is characterized by large crystals (phenocrysts) surrounded by a fine-grained matrix.


Is a metamorphic rock intrusive or extrusive?

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


What are the types of Igneous rock?

extrusive and intrusive


What are the type of igneous rock?

extrusive and intrusive


Is extrusive a rock?

Igneous rocks can be categorized as either extrusive or intrusive.


How is rhyolite categorized?

Rhyolite is a felsic extrusive igneous rock.


What is rock type?

Granite is classified as an intrusive, felsic, igneous rock.


What is the type of igneous rock formed beneath the surface of the earth?

Igneous rock formed from cooling magma below the surface is called intrusive igneous rock.


What type of rock can be intrusive and extrusive?

Igneous rock can be both intrusive and extrusive. Intrusive igneous rocks form from magma that cools beneath the Earth's surface, while extrusive igneous rocks form from lava that cools on the Earth's surface. Examples of intrusive igneous rocks include granite and diorite, while examples of extrusive igneous rocks include basalt and rhyolite.


What are the two igneous rock groups?

Intrusive/Extrusive?