| http://www.w3.org/ns/prov#value | - Chlorine, as the chloride ion Cl-, is the main negative ion in ocean water (1.9 percent by weight) and in inland seas such as the Caspian Sea, the Dead Sea, and the Great Salt Lake of Utah; it is found in evaporite minerals, for example, combined with sodium, as rock salt (halite) and in the minerals chlorapatite and sodalite.
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