Very weird looking rock

somewhere in new Brunswick? do the vinegar drop test on the first to see if its got carbonate.(it could be reef segment), or else a "clinker"
Its hqrd to tell without some more tests like
sp grqvity, scrtch test, look for any fossils in those little depressions

The second rock is interesting. It reminds me of a nepheline syentite with some dense quartz but let us know whqt that rock scratches (Window glass, plastic?). have access to an ultraviolet light?
Did the area for this rock be anyqhere Cape Blomiden?

I live in Bulgaria, thus meaning there are no reefs or anything like that hundrets of miles from here. Right now I cant do a vinegar test, so I'll post tomorrow.

About the second rock it scratches glass and plastic easily, but I dont have uv light.

checking out..

I did the vinegar test and the rock did not react with it, so its not a reef segment.

I think the second rock is polished haematite, a form of iron ore, while the first rock appears to be slag from some sort of other metal processing. Is there any history of mining or smelting where you found the rocks?

Not really... I live in the lowlands and there isnt really much going on here. Only a limestone quarry nearby. Also the second rock is not attracted by magnet at all, and its not magnetic (hematite should be right?). Here are some pictures of pieces of iron ore I've found around here (no idea where they've come from):
https://ibb.co/nn4nPk
https://ibb.co/ht5u4k
https://ibb.co/hBuMjk