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All these negotiations, however, fell through and no potash has been exported from Germany to the United States since the commencement of the war. Enough potash, however, is obtained in the United States for munition purposes from the burning of seaweed on the Pacific Coast, from the brines in a lake in Southern California and from a rock called alunite in Utah.
The specimens shown to us sufficiently indicated that it was neither alunite, similar to the rock of Tolfa and Piombino, nor those capillary and silky salts of alkaline sulphate of alumina and magnesia that line the clefts and cavities of rocks, but real masses of native alum, with a conchoidal or imperfectly lamellar fracture.
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