Slate tile in aquarium?

[manakh]

I've read that natural slate tile (non ceramic) is safe for aquariums. I want to double check what I am looking at is indeed safe.

So is this safe to use for caves or structure?
I don't have enough posts to do a real link so if you guys could go to home depot site and copy paste this in search I would greatly appreciate it! Thank you
Hampshire Pattern Gauged Slate Floor and Wall Tile

 

[Owens]

Should be fine. Any innate stone works.

The only thing you have to watch out for is the ones used for back splash, which have material on the back; its pretty easy to figure out though.

 

[manakh]

thank you

 

[Tig Phish]

https://www.facebook.com/video.php?v=1145810392129524