The dust could come from any of it's ingredients.I have been searching for quite a while and have found 1 review saying it's dusty, but no reviews saying it will hurt chicks. Anybody on this thread have an opinion about the chicks and the zeolite?
Any broody raised chicks will be exposed to all kinds of 'dust'.
I've used zeolite mixed with sand as brooder bedding with no apparent ill effects.