41![References on Ball Clay U.S. Geological Survey: Clay and Shale. U.S. Geological Survey (U.S. Bureau of Mines prior to 1996), Minerals Yearbook, annual. Blade, L.V., 1965, Geologic map of the Hickory Quadrangle, Graves C References on Ball Clay U.S. Geological Survey: Clay and Shale. U.S. Geological Survey (U.S. Bureau of Mines prior to 1996), Minerals Yearbook, annual. Blade, L.V., 1965, Geologic map of the Hickory Quadrangle, Graves C](https://www.pdfsearch.io/img/6eeb0485c0e2231d32492b9805227d09.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-14 14:26:42
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42![Clays Clays represent one of the largest mineral commodities in the world in terms of mineral and rock production and use. Many people, however, do not recognize that clays are used in an amazingly wide variety of applic Clays Clays represent one of the largest mineral commodities in the world in terms of mineral and rock production and use. Many people, however, do not recognize that clays are used in an amazingly wide variety of applic](https://www.pdfsearch.io/img/03e68874ccd6fe8e8166714650c87423.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-04-13 15:56:03
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43![Introduction to Data Storage Media By Craig Ball Text © 2011 Mankind has been storing data for thousands of years, on media as diverse as stone, bone, clay, wood, metal, glass, skin, papyrus, paper, plastic and film. In Introduction to Data Storage Media By Craig Ball Text © 2011 Mankind has been storing data for thousands of years, on media as diverse as stone, bone, clay, wood, metal, glass, skin, papyrus, paper, plastic and film. In](https://www.pdfsearch.io/img/bef1f14da6c4e6648d5b90f4b31282a2.jpg) | Add to Reading ListSource URL: www.craigball.comLanguage: English - Date: 2011-12-19 02:07:42
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44![ENGL.KÄÄNNÖS/OHIO -ESITELMÄ ENGL.KÄÄNNÖS/OHIO -ESITELMÄ](https://www.pdfsearch.io/img/84517f2d7ace950669a888d7dc58ff98.jpg) | Add to Reading ListSource URL: www.airihortling.fiLanguage: English - Date: 2009-10-16 04:14:32
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45![](https://www.pdfsearch.io/img/45221cfdf11e035669073c2530699a9e.jpg) | Add to Reading ListSource URL: www.devon.gov.ukLanguage: English - Date: 2005-05-10 11:58:05
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