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An impure clay, primarily montmorillonite.
Originally described from Fort Benton shales, Wyoming, USA.
Classification of Bentonite
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Other Names for Bentonite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Bentonite
Grim, R.E. and N. Güven (1978), Bentonites. Geology, mineralogy, properties and uses: 143-155. Elsevier, Amsterdam.
Christidis, G.E. (1998), Comparative study of the mobility of major and trace elements during alteration of an andesite and a rhyolite to bentonite, in the islands of Milois and Kimolos, Aegean, Greece: Clays and Clay Minerals: 46: 379-399.
Internet Links for Bentonite
Localities for Bentonite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: Catalão No. 2 mine, Ouvidor, Catalão I Carbonatite Complex, Goiás, BrazilFrom David Von Bargen, 24th May 2013 18:12:28