I was working in my front yard in Tulsa Oklahoma and ran over this rock with my lawnmower. It was logged in the ground enough I didn’t see it.
It’s 2.5 inches in length.
Black in color with what appears to be rust or oxides spots. Also,
little bits of quartz or crystal.
The texture I would describe as lava(flow) like.
It is not magnetic but it feels very dense. Feels a lot heavier than a normal rock that size.
It is very hard.
I hit it with my lawnmower blade and it barely chipped it. Also, I had mowed the yard a week and a half to 2 weeks before that and it wasn’t there. My yard is completely secure with s wrought iron fence and no one can access where it was found.
I appreciate the help.