Very nice rock

[FLIP]

Can you give us an idea of how dense it is?

I bought "reef rock" at a store. Even though it was 3.50/lb, the pieces were SOLID rock with nice holes. I think it was comparable to texas holey rock (for any african cichlid fans out there).

3.50 - A nice sized piece of rock was about 2.75lb
6.99 - A piece of fiji premium (approx same volume/size) would have been 2b lb
2.99 - Tuffa rock (similar size) would have been 1.5lb
3.99 - Petrified rock (for reference, i'm sure you've seen this stuff) would be like 5-6lb!