Vermiculite
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Vermiculite is a naturally occurring mineral from a group known as hydrated laminar magnesium silicates. When heated, flakes of the material expand by as much as 30 times to form concertina-like particles – a process known as exfoliation. The resultant product is used in many applications, including foodstuffs, horticulture and...Explore the subscription options here to get full access to isurv, including downloads.
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