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An impure clay, primarily montmorillonite.
Originally described from Fort Benton shales, Wyoming, USA.

Classification of Bentonite URL:
Please feel free to link to this page.

Other Names for Bentonite

Name in Other Languages:
Simplified Chinese:润土

Other Information

Health Risks:
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

Reference List:
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

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.
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