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Rocks are foundational components of the Earth's crust, composed of various minerals and organic materials. They can be classified into three main types: igneous, sedimentary, and metamorphic, each formed through different geological processes. Igneous rocks originate from cooled magma or lava, sedimentary rocks result from the accumulation of sediments, and metamorphic rocks are transformed from existing rocks under heat and pressure. This guide explores the materials that make up rocks, their formation, and the role they play in Earth's geology.
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