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1. Rock containing halite as its main constituent.
2. Coarsely ground or granulated common salt.
(Minerals) another name for halite
common salt, sodium chloride, occurring in masses.
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|Noun||1.||rock salt - naturally occurring crystalline sodium chloride|
atomic number 11, Na, sodium - a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition