31![44 CLAYS (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: In 2012, clay and shale production was reported in 40 States. About 180 companies operated approximately 750 clay pits or quarr 44 CLAYS (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: In 2012, clay and shale production was reported in 40 States. About 180 companies operated approximately 750 clay pits or quarr](https://www.pdfsearch.io/img/df487a781070de2dac9dd927193eec3d.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:04:48
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32![44 CLAYS (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: In 2013, clay and shale production was reported in 40 States. About 180 companies operated approximately 750 clay pits or quarr 44 CLAYS (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: In 2013, clay and shale production was reported in 40 States. About 180 companies operated approximately 750 clay pits or quarr](https://www.pdfsearch.io/img/86545322e96911b5270d75d0180da9e9.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 14:17:45
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33![CLAYS By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production table was prepared by Linder Roberts, international data coordinator. The amount CLAYS By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production table was prepared by Linder Roberts, international data coordinator. The amount](https://www.pdfsearch.io/img/ab717f6a5cc9c968f8fc52ae5ed24e21.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-04-16 07:25:32
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34![CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production tables were prepared by Linder Roberts, international data coordinator. CLAY AND SHALE By Robert L. Virta Domestic survey data and tables were prepared by Maria Arguelles, statistical assistant, and the world production tables were prepared by Linder Roberts, international data coordinator.](https://www.pdfsearch.io/img/a8dbaab61d6f7d46f876b4da57c2c620.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 10:22:19
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35![2005 Minerals Yearbook CLAY AND SHALE U.S. Department of the Interior U.S. Geological Survey 2005 Minerals Yearbook CLAY AND SHALE U.S. Department of the Interior U.S. Geological Survey](https://www.pdfsearch.io/img/462b1c7f9599d24d2b0b202cb6d8e603.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-02-26 15:34:22
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36![2006 Minerals Yearbook Clay and Shale U.S. Department of the Interior U.S. Geological Survey 2006 Minerals Yearbook Clay and Shale U.S. Department of the Interior U.S. Geological Survey](https://www.pdfsearch.io/img/a4e71fb01fdbcdf145a5f44370bdc09f.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-14 09:52:12
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37![OFFER Products: Bentonite and palygorskite clay Manufacturer: OFFER Products: Bentonite and palygorskite clay Manufacturer:](https://www.pdfsearch.io/img/24bb5be4aa93c4e5f8af6ba33aa4173e.jpg) | Add to Reading ListSource URL: www.dashbent.comLanguage: English - Date: 2014-04-28 08:01:34
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38![THE AMERICAN MINERALOGIST, THE AMERICAN MINERALOGIST,](https://www.pdfsearch.io/img/9cf8ce4805353285fe5e525499e02fcd.jpg) | Add to Reading ListSource URL: www.minsocam.orgLanguage: English - Date: 2007-04-04 00:15:58
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39![NEW DATA ON SEPIOLITE AND ATTAPULGITE 1 By NEW DATA ON SEPIOLITE AND ATTAPULGITE 1 By](https://www.pdfsearch.io/img/d562cfcb12fa0ba47f899362100e3f64.jpg) | Add to Reading ListSource URL: www.clays.orgLanguage: English - Date: 2009-03-23 20:34:27
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40![](https://www.pdfsearch.io/img/29252042e6a54e9341c2c2f04796e5c9.jpg) | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 10:49:04
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