what are rocks made of
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A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter. Common rocks include granite, basalt, limestone, and sandstone.
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Explanation:
chunk of granite rock may look gray and boring, but take a closer look under a microscope and it’s possible to see that the rock is made from billions of tiny colorful grains. Each microscopic grain is a substance called a mineral, and it’s minerals that are the ingredients that make up all the rocks on Earth
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