Rock Salt

Halite is the mineral form of sodium chloride, NaCl, commonly known as rock salt. Halite forms isometric crystals. The mineral is typically colourless to yellow, but may also be light blue, dark blue, and pink. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides and borates.
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For sodium in the diet, see salt. Sodium chloride, also known as common salt, table salt, or halite, is a chemical compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the main ingredient in edible salt, it is commonly used as a condiment and food preservative. In one gram of sodium chloride, there are approximately 0.3933 grams of sodium, and 0.6067 g of chlorine.
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Noun
1. naturally occurring crystalline sodium chloride
(synonym) halite
(hypernym) sodium chloride, common salt
(substance-meronym) sodium, Na, atomic number 11

A crystalline form of salt that is mixed with cracked ice to freeze ice cream.

rock-salt /'rɔk'sɔ:lt/
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