Is diatomacous earth considered vegan? Its made from fossils. It is included in some feed recipes.
I wouldn't see why not... It's been fossilized back into minerals, so the organic life is gone from it... No harm mining it, as fas as I know... Greensand, rock phosphate, gypsum, lime...all good sources of minerals from fossilized remains... Plants eat it without us being able to monitor it lol, so I would say yes.

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