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Why does granite have larger crystals than obsidian?

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User Mud
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1 Answer

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Answer:Granite forms as magma cools far under the earth's surface. Because it hardens deep underground it cools very slowly. This allows crystals of the four minerals to grow large enough to be easily seen by the naked eye. Look at the photo of granite above, notice the different crystals in the rock

Step-by-step explanation:

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User Blueyed
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