Commodity Code
bentonite
http://resource.geosciml.org/classifier/cgi/commodity-code/bentonite
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definition | Bentonite is an absorbent aluminium phyllosilicate, essentially impure clay consisting mostly of montmorillonite. |  |
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source | http://en.wikipedia.org/wiki/Bentonite | |
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is primary topic of | bentonite& properties=type | |||||