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November 23, 2009  
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You are here : AllRefer.com > Reference > Encyclopedia > Geology And Oceanography > clay
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clay, Geology And Oceanography

Related Category: Geology And Oceanography

clay, common name for a number of fine-grained, earthy materials that become plastic when wet. Chemically, clays are hydrous aluminum silicates, ordinarily containing impurities, e.g., potassium, sodium, calcium, magnesium, or iron, in small amounts.



The Columbia Electronic Encyclopedia Copyright © 2009, Columbia University Press.
Licensed from Columbia University Press. All rights reserved.



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Earth and the Environment > Geology and Oceanography
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