bentonite

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Related to bentonitic: Bentoquatam, sodium bentonite

bentonite

(bĕn`tənīt'): see clayclay,
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.
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bentonite

[′bent·ən‚īt]
(geology)
A clay formed from volcanic ash decomposition and largely composed of montmorillonite and beidellite. Also known as taylorite.

bentonite

A clay, formed from decomposed volcanic ash, with a high content of the mineral montmorillonite; has the capability of absorbing a considerable amount of water, and swells accordingly.
References in periodicals archive ?
In the case of RLW, the bentonitic clays within the Mamonia Complex of western Cyprus are the source for this Late Bronze Age ware.