Is This Mason's Sand Silica-Free?

Question

http://www.barkblowers.com/Bark%20Blowers/Pages/BBIproducts.html

Answer 1

what makes you think that it is? sand is a silica the only way to make it silica free would be to make it with something other than sand, as far as I know there is know silica free sand and no reason for it

Answer 2

i believe all sand is silica based but masons sand should be coarse enough to keep it from being blown around in a sand box...if thats what you were wondering...