Diamonds might be prettier and more durable, but there’s another translucent rock that’s even more valuable to us. We may not devote songs to salt or parade around with big hunks of it on our fingers, but we need it to survive, it makes food a hell of a lot tastier and it’s got hundreds – if not thousands – of practical uses. Here are 20 unusual and surprising household, beauty and health uses for salt, from cleaning the chimney to brightening your skin.
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