“Does silica Rock kitty litter stuck between my cat's toes! Had it tracked all the way to my house, I stepped on it and it even hurt my feet after was on the carpet. Not a good sign guys. Will not buy The Rock Krystal's anymore. And the fine dust is not good for your lungs nor my cat's lungs. I do like the fine silica. I keep my mask on when I clean my cat litter box to keep from bending down and freezing in the fine dust.”