Describe and give an example of how it possible for two igneous rocks to have the same mineral composition but be different rocks.

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02-03-2018
Geography

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Describe and give an example of how it possible for two igneous rocks to have the same mineral composition but be different rocks.

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humairaahmed774 humairaahmed774 · Answer 1 · 2018-03-02T13:22:26+01:00

Because there are 2 types of igneous rocks:- •Intrusive rocks-are rocks when the magma cool’s down before reaching the surface of the earth. •Extrusive rocks-are rocks when magma cools down after reaching the earths surface. So their composition can be different because of the formation of the rocks at different places. Eg:-Granite rock:-intrusive rock. Basalt:-extrusive rock