| http://www.w3.org/ns/prov#value | - e, pirssonite, natron, gaylussite, shortite, halite, and other salts, minerals, and so forth. [0020] In various example embodiments, the fluid 10 is selected from a group consisting essentially of water, a caustic mixture, a sodium carbonate solution, or any other fluid 10 capable of mechanically and/or chemically reacting with the subterranean material 25 to be mined so as to produce a mixture 55
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