Question

why are intrusive rocks usually coarse grained​

Answer 1

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$\:\purple\implies\green\bigstar$Intrusive or plutonic rocks crystallize from magma beneath the earth's surface. Magmas and their resultant plutonic rock bodies cool and crystallize slowly and are characterized by coarse-grained texture, in which the mineral crystals are visible to the unaided eye.$\:\purple\:\green\bigstar$

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Answer 2

Explanation:

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