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An igneous rock contains

large crystals of quartz, feldspar, and horn-
blende. How did the rock most likely form?

User Focuser
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1 Answer

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These minerals are quartz, feldspar, mica, and usually hornblende. 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 enou
User Antonyboom
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