Clay and Shale

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Ohio has long been a center of the clay and shale industry. During the 1900s and early 1900s many companies produced brick, common clay products such as sewer tile, and decorative ceramic pottery. Although many of these companies have ceased operation, Ohio clays and shale are still used to produce brick, tiles, ceramics, as a component of cement, and in the manufacture of paper, cosmetics, and many other products. Much of the clay mined is used as liners for landfills and ponds.
[[Category:Natural History]] [[Category:Geology]] [[Category:{$topic}]]
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