Where can i find indian healing clay in a store near me?

i really wanna buy this but idk where to buy it at i don't wanna buy it online because i don't wanna wait u just want it NOW i live in porter tx its ok if u can list a location in houston. if u cant help me in that well plz list a site where i can type in the iteam and put in my zip code and all these stores show up plllzzzzz helppp