How are the three major sedimentary rocks formed?

The three major types of sedimentary rocks—clastic, chemical, and organic—are formed through different processes. Clastic sedimentary rocks are created from the accumulation and compaction of mineral and rock fragments, often transported by water, wind, or ice. Chemical sedimentary rocks form through the precipitation of minerals from solution, often in water bodies, resulting from evaporation or chemical reactions. Organic sedimentary rocks develop from the accumulation of plant and animal debris, such as coal from plant matter or limestone from coral and shell fragments.