Need help on what I found

[DigDugNY]

I found this today while metal detecting. I didn't find it with the detector, I saw it on the ground when digging up a target. I confirmed that a magnet sticks to it, but the weird thing is that my propointer and my detector don't pick it up as metal. I have no idea what to look for and if there is a way to debunk it. The area I found it in used to be a Picnic area, so I thought that maybe it was stuff that got burnt in a fire and solidified over the years, but I dont know. Any help is appreciated

 

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[Oklahoma Digger]

Looks like slag or some sort. Has a bunch of holes which a meteorite does not. Need to see fusion crust, regmaglypts & chondrules for it to be a meteorite. There is a room for gems/rocks and could ask someone there.

 

[rock]

Yeah its slag