It is more like that is a sort of drilling mud (bentonite possibly additioned wi... | Hacker News

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jaclaz on Aug 20, 2023 | parent | context | favorite | on: 'No-water' hydropower turns England's hills into g...

It is more like that is a sort of drilling mud (bentonite possibly additioned with baryte ):

https://en.wikipedia.org/wiki/Bentonite

https://en.wikipedia.org/wiki/Drilling_mud

Bentonite is also used in medicine (dermatology).

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