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Granite is an intrusive rock while rhyolite is an extrusive rock.


** Intrusive rocks are rocks that are formed BELOW the earth's surface.

Extrusive rocks are rocks that are formed ON the earth's surface.

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14y ago
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14y ago

The size of grains or crystals that compose them. Granite is coarse grained due to slow cooling of magma. Rhyolite is fine grained because of quick cooling of lava. Chemically, they could be identical and be from the same magma source.

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10y ago

Both granite and rhyolite form from the same variety of highly viscous magma. The only difference is that granite forms underground while rhyolite is deposited by volcanic eruptions at the surface. Granitic/rhyolitc magma is so viscous that it often has diffivulty being erupted, and so stays underground until it cools.

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13y ago

They are the same in every thing but grain size and location of crystallization. Granite is coarse-grained and intrusive. Rhyolite is fine-grained and extrusive.

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12y ago

Granite is coarse grained, with large crystals and its an intrusive igneous rock While Rhyolite is fine grained, with tiny crystals and is an extrusive igneous rock.

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12y ago

Rhyolite is an extrusive granitic rock, meaning it formed on the surface. Granite is an intrusive rock, meaning it formed underground.

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7y ago

Rhyolite, which cools at the surface, cools much more quickly than granite, which cools underground. The rapid cooling only allows small crystals to form.

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Q: Why is the texture of rhyolite different from the texture of granite?
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