Difference between revisions of "Halloysite"
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A refractory [[clay]] that has a similar composition to [[kaolin]] but a different conformation. In halloysite, the plate-like structure are rolled into tubes. This results in high and often, nonuniform, shrinkage of the clay as it dries. Halloysite containing clays are found in New Zealand, Japan, North Africa and Mississippi (Fournier 1996). | A refractory [[clay]] that has a similar composition to [[kaolin]] but a different conformation. In halloysite, the plate-like structure are rolled into tubes. This results in high and often, nonuniform, shrinkage of the clay as it dries. Halloysite containing clays are found in New Zealand, Japan, North Africa and Mississippi (Fournier 1996). | ||
| − | + | [[[SliderGallery rightalign|Halloysite PMA.TIF~FTIR (PMA)]]] | |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | haloisite (Port.); Halloysit (Deut.) | + | haloisite (Port.); Halloysit (Deut.); Al2O3.3SiO2.2H2O |
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| − | == | + | == Risks == |
| − | + | * Noncombustible. | |
| − | == | + | ==Resources and Citations== |
* Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | * Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | ||
Latest revision as of 14:05, 30 August 2022
Description
A refractory Clay that has a similar composition to Kaolin but a different conformation. In halloysite, the plate-like structure are rolled into tubes. This results in high and often, nonuniform, shrinkage of the clay as it dries. Halloysite containing clays are found in New Zealand, Japan, North Africa and Mississippi (Fournier 1996).
Synonyms and Related Terms
haloisite (Port.); Halloysit (Deut.); Al2O3.3SiO2.2H2O
Risks
- Noncombustible.
Resources and Citations
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997