Vinegar fizz test on Aragonite Sand
I know the kind of strong reaction you get with vinegar and baking soda (sodium bicarbonate), but do you get a similar strength reaction with bought sand that is aragonite, or just a light fizz? I just bought three different types of play sand trying to find an aragonite sand. None had any kind of strong fizz. I think I heard a faint fizz with one of them, but I suspect it is silicate too.
-Wal-Mart Garden Basics Play Sand
-Gulf Coast White Beach Play Sand
-Best Play Sand from Toys-R-Us