- Fri May 24, 2019 9:39 pm
#336506
I am still searching and reading information for a good source of silica sand for my potting mixture, and read recently that vinegar is one way to test the sand. If it bubbles, it is not good for the plants.
Anyone know if this is an accurate way to test? I have one bag of sand with small quartz silica particles in it, but it bubbled when I poured a small amount of vinegar on it, so it confused me because I thought that was best for the plants..
Anyone know if this is an accurate way to test? I have one bag of sand with small quartz silica particles in it, but it bubbled when I poured a small amount of vinegar on it, so it confused me because I thought that was best for the plants..