WAS sand for potting mixes NOW "Silica Sand"
Pamela Slate (Sat, 15 Nov 2014 16:49:11 PST)

Deall,
I have personally used silica sand for sand blasting.....and with very
great care. I had to wear an industrial dust mask and a hood. It can be
very nasty stuff for the lungs and you'll find that info easily online. I
doubt particle size matters since it's all very fine. I believe I once saw
some of kind of condition called "silicosis" but you'd need to check
yourself.

For me, it's best and broadest uses are industrial, should stay that way
and finding any possible alternative for using with potted or other
landscape plants is preferable. Isn't it used in Quickcrete?

I hope you can find something like coarse pumice or sharp sand or grit of
some kind, mabe Dry Stall.

Good luck,
Pamela