Rocks (Book)

Chemical sedimentary rocks form when crystals precipitate out from a liquid. The mineral halite, also called rock salt, forms this way. You can make halite! Leave a shallow dish of salt water out in the Sun. As the water evaporates, salt crystals form in the dish. There are other chemical sedimentary rocks, like gypsum.

Table below shows some common types of sedimentary rocks and the types of sediments that make them up.

Common Sedimentary Rocks

Picture	Rock Name	Type of Sedimentary Rock
	Conglomerate	Clastic
	Breccia	Clastic
	Sandstone	Clastic
	Siltstone	Clastic
	Limestone	Bioclastic
	Coal	Organic
	Rock Salt	Chemical precipitate