No, it is sodium chloride which is a compound.
sodium
It come originally from element inside the earth. Rock is considerable form of metal salt. Salt in the sea is not only NaCl (Sodium chloride), there are MgCl2, CaCl2 (Magnesium and Calcium salt) and trace metal in these salt element. Those salt of metal that can be dissolve just simply dissolve in water. Those that can't dissolve is rock.
salt is a compound. it is not an element
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 is chemical!
Rock salt and table salt are both sodium chloride - NaCl; table salt is the pure form of rock salt.
mixture of rock particle and salt
Sodium, being a reactive element In group 1, cannot be found as element in nature. One of its common compounds is rock salt.
Rock salt is the mineral form of sodium chloride, which is a compound composed of equal parts sodium (Na) and chlorine (Cl) ions. It is commonly found in nature as large, colorless to white cubic crystals and is used as a seasoning and a de-icing agent.
Rock salt
You can eat rock salt