A rock of mined salt, denser and purer than bagged sea salt, emerges from deep deposits where ancient seas have long since dried. A single rock is broken into chunks and ground fine for cooking, or dissolved in water for brining hides and fish. Rock salt keeps indefinitely and travels light; miners prize it as a reliable wage-payment in low-lying salt lands.
Salt, rock
Mined rock salt, pure and dense, grinds fine, stores indefinitely.