Granite - Coarse-grained hard rock with crystals., Chalk - Rock that is formed from the skeletons of tiny sea animals., Marble - A rock that is used to make floor tiles and wall tiles., Igneous Rocks - Are formed when magma cools and solidifies., Examples of igneous rocks - Include basalt, granite, pumice, and andesite., Metamorphic Rocks - Formed by pressure deep under the Earth's surface, Examples of metamorphic rocks - Include quartzite, marble and slate., Sedimentary rocks - Are formed by sediment that is deposited usually as layers at the bottom of lakes and oceans., Examples of sedimentary rocks - Include limestone, sandstone, chalk and coal,

Rock classification

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