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[Text] ...plants need to have the appropriate levels of aeration and moisture retention in their growing media - and this is provided by VERMICULITE particles.
[Image] Rock sample
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Now if that immigration official had known of all of the uses for vermiculite I could still be standing at the counter trying to gain entry to the US...

Graham Ellicott is a consultant in the industrial minerals market.
Review is published by Rio Tinto,
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