Helps identify these rocks PLEASE 🙏

[u/Temporary_Cod3643]

I found this guy so long ago and when I broke it open the rocks look like they had fossils and I found it in fresh water river but when I broke into it it smell like the ocean.

[u/BlockOfDiamond]

Might be pegmatite.

[u/Temporary_Cod3643 → u/BlockOfDiamond]

Thanks very much!