rock salt

== English == === Alternative forms === rocksalt === Etymology === From rock +‎ salt. === Noun === rock salt (countable and uncountable, plural rock salts) (mineralogy) The mineral halite. Coarsely ground common salt, often used as road salt, as feedstock, or for other applications. (Philippines) Synonym of sea salt, due to its rocky texture. ==== Translations ==== === See also === saltstone