The chemical formula unit is the same: NaCl; rock salt (halite) in the mine is more impure.
Salt
You could use a standard kitchen scale to measure out 10.5g of rock salt accurately. If you don't have a scale, you can estimate using measuring spoons, keeping in mind that 1 teaspoon of rock salt is approximately 6g.
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NaCl is commonly known as table salt - Na=Sodium Cl=Chloride
The address of the Salt Rock is: 5575 Madison Creek Rd, Salt Rock, 25559 9801
Rock salt is not a rock...its just a salt that can be extracted from salty water especially from sea water.
Rock salt and table salt are both sodium chloride - NaCl; table salt is the pure form of rock salt.
Rock salt is chemical!
Kitchen Salt -> NaCl
mixture of rock particle and salt
Rock salt
You can eat rock salt