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Rock salt is just big crystals of NaCl. It can be extracted in three ways.

They can send people underground to chip it off the walls of a salt mine.

They can drill holes in salt deposits and pump in water. As the salt breaks down, they pump in more water. After a year they pump the brine into shallow ponds and let the water evaporate.

Or they can pump seawater into ponds and let it evaporate.

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Silas Stamm

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3y ago

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