All salts are not pure NsCI. They contain trace minerals that effect their flavor. Additionally, how it's harvested or mined impacts the flavor as well. Table salt is mined via one of a couple methods...deep shaft mining and solution mining. Sea salt is not from a mine, nor is it harvested through either of those methods. It is harvested by hand from solar evaporation ponds. Because they're not heavily processed, the salt is cleaner, fresher and retains trace minerals that would be removed by the refining process the salt from mines goes through. Where it is harvested also changes it because the minerals in the area are different. For example, in the Himalayas, the pink salt gets its color and distinct flavor from calcium, magnesium, copper, iron, and carotene. Hawaiian red salt gets its color and metallic tang from iron oxide in the volcanic clay. "Black" salt (which is really gray) contains iron, lava, and charcoal. So no, salts are not all the same. The difference is not in the price, it's in the flavor. The flavor is the reason for the price.

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