rock salt

Noun
  1. Naturally occurring crystalline sodium chloride (synset 114696385)
    is a type of:
    • mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    • common salt, sodium chloride - a white crystalline solid consisting mainly of sodium chloride (NaCl)
    substance holonym: 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)
    same as: halite

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