lava plates?

[TankBoss]

I once knew a guy with a big cichlid tank (maybe 100 gal) and his rock work was all done in these large, natural lava plates. They were natural lava formations, warped plates of lava is The best I can describe them. Perfect for stacking. Anybody know where to get these things? I've been searching and haven't found but I know they exist and I WANT THEM!

 

[BigJim]

I think you'd be best of trying a rock and mineral shop.

 

[TankBoss]

I never thought of that! A rock store? Does such a thing exist??

 

[BigJim]

Sure they do. Some people collect rocks as a hobby.