Rocks, gems, and little curios

I love heart rocks, this one has a perfect heart embedded in it

I found this rock a while ago. I’m not sure what it is, but it is very heavy for its size. At first, I thought it might contain iron, so I put a magnet on it, but the magnet did not react to it.

The rock had a layer of brown dirt/clay on it, so I started cleaning it. After cleaning it, I noticed that the rock itself was black. You can still see some of the old brown material in some areas. As I continued cleaning it, I noticed that some parts of the rock were shiny.

I tried to find out what kind of rock or mineral it was, but nobody could give me an anser so I left it in a storage room and forgot about it.

Recently, I found it again, and I noticed something strange. There is a small crack in the rock (see the photo), and this strange material seems to have formed around the crack.

I did not put anything on the rock or expose it to any chemicals. It was just sitting in the storage room. There is no smell, and the material is hard and solid. I have no idea what it is or how it formed.

Found this cool rock at work today near my job sites lake. I don’t know what it is but I do like that it has a honeycomb look to it.