Happy holidays to everyone. I'll be changing my showers soon and was wondering if anyone has tried slate in or around their shower stalls. Right now we're have basic FRP but want to step it up a little bit but designer FRP & glassboard can run over $4 a square foot. I was thinking of using natural slate which is far less money and might not need grout, but I'm still worried about the salt eating through the stone. Any thoughts?