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walleriteWALLERITE, n. A mineral, or variety of clay, found in small compact masses of the size of a nut, white and opake, or yellowish and translucent. |
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walleriteWALLERITE, n. A mineral, or variety of clay, found in small compact masses of the size of a nut, white and opake, or yellowish and translucent. |