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Mantle and core form the earth's crust. granite is found on the continental plates of the earth's crust
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Granite is an intrusive acidic rock, which means it has a higher percentage of silica, SiO2, based minerals such as quartz, plagiarizes, orthoclase and feldspar's, than it does Fe/Mg based minerals. Granite is lighter than basalt. The granitic continents float on the basaltic ocean crust tectonic plates.
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