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| salt tailings pile (in potash mining: "Salt tailings are a waste by-product from the potash refining process after the sylvite is removed from the ore". CopperKettle) | |||
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| salt tailings pile (in potash mining: "Salt tailings are a waste by-product from the potash refining process after the sylvite is removed from the ore". CopperKettle) | |||