black diamond

If you look back at my older started thread, you can see it is about a rock that was identified as either hematite or carbonado black diamond. I found the first one down in western Kentucky in driveway gravel and I have recently gone back to the same place looking for any signs of the same type...

I have been collecting rocks ever since I was a kid and I have started to find many different rare types of stones. I came across a large black metal-looking nugget while looking for cool stones in my grandparents gravel driveway and few years back. I have discarded the weird thing but my...