I bought some peat moss, manure and compost mix and potting soil mix to start my tomatoes. I noticed in the potting soil there are small little goldish to brass colored flakes in it. Does anyone know what these flakes are??? both the manure compost mix and the potting soil are ormi so they are organic BUT they don't list all the ingredients in them. I was wondering what these metal flakes cold be, they are not much larger than small clover seed but are flat. It almost looks like gold leaf ground up as the particles are flat and thinner than paper but are small irregular shaped. I'll use it as I already bought it but won't buy any more till I know what this is as I don't want to add anything that may cause me to fail organic certification. I'll try taking a picture if no one can help identify but I forgot to bring my phone and I live so far out in the boonies that internet is only dial up and I refuse to pay for that. (HOPE Trump does help rural internet soon like he said in state of the union!!!)
s. lowe, your probably correct as looking up vermiculite it shows fine vermiculite and it looks similar. I'm used to the medium to coarse vermiculite and perlite as they look more like small rocks whiteish to tanish in color. It just had me worried as this looks like metal but perlite is expanded volcanic glass and is more whitish in color. The vermiculite I have bought to add is more coarse to medium sized and is tan in color. But after reading more on this I'm almost sure that you are correct. Here is a photo showing coarse and flaked vermiculite. Mine is more like the flakes on the left in this organic potting mix but is way more fine in size than in this photo.
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2020 Permaculture Design Course for Scientists and Engineers, June 14-27