Rock ID

[hrdneglcry]

I was trying to ID this rock I just bought. It doesn't seem like Pukani or Fiji. Its not light weight especially the larger pieces. Its fairly white. Its very pourous. Just wondered. Got a good deal. Cannot use all of it right now. Filled my sump and used what I could in the aquariums. Was about 110 pounds.

 

[Shibaken3]

Marco rock from BRS?

 

[hrdneglcry]

Marco rock from BRS?

Thanks it does look like that and I haven't been able to find any other that it looks like.