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halloysite

 - 2 dictionary results

hal⋅loy⋅site

[huh-loi-sahyt, -zahyt, ha-]
–noun
a refractory clay mineral similar in composition to kaolinite.

Origin:
1820–30; after Jean-Baptiste-Julien Omalius d'Halloy (1783–1875), Belgian geologist; with -site for -ite 1 , after mineral names formed from surnames ending in s
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Encyclopedia

halloysite

clay mineral that occurs in two forms: one is similar in composition to kaolinite, and the other is hydrated. Both forms have a lower specific gravity than kaolinite, are fibrous rather than platy, and may exhibit a prismatic tubular shape. Seekaolinite.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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