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Earth Materials
Minerals | Rocks

Out of Solution
Chemical Sedimentary Rocks

Chemical sedimentary rocks form by precipitation of transported and dissolved products of chemical weathering from the solutions. If the solution is oversaturated by the dissolved constituents, they are directly precipitated to form a solid rock. In marine environments, this process forms microcrystalline limestone. In terrestrial environments such rocks result from the evaporation of water in arid climates forming bedded evaporite deposits of minerals such as baryte, ulexite, gypsum and halite.

Groundwater and spring deposits