If it contains many bubbles it's probably an associated slag. There is a natural glass like obsidian but contains more sulfur and metal impurities giving it off colors green yellow rarely red and blue
It could be either slag glass or obsidian, an explanation of how it could be obsidian where none should be is a person lost it.Different materials have been found thousands of miles from the source with native American tribes through trade with other tribes, this could be a case of that.
Started with a Garrett. I think I've probably tried everything make and model from 1977, all the way to the up to the E-trac and GPX 4800.
Nothing new as for me now, I am pretty much handicapped.
Started with a Garrett. I think I've probably tried everything make and model from 1977, all the way to the up to the E-trac and GPX 4800.
Nothing new as for me now, I am pretty much handicapped.
You might have something there. Remember Centralia, PA - that coal mine underground is still burning after 40 years. I've seen coal in the wild, and I've seen some which were very pretty.
If you've never heard of that here's a short video.
Thanks for all the great responses everyone. It doesn't burn or melt and it has a very distinctive green color to the glass looking part. Like a hunter/olive mix. It's hard to get it to show up in pictures as well as in real life. Also I live about 10 minutes from centralia! Used to be a HUGE coal mining area so if that could have something to do with it it probably does although I have seen a lot of coal and this doesn't look anything like it to me.
Glassy pieces of slag has been spread all over the country as railroad ballast. It was widely used during the times when the big steel refineries and other smelter operations where in operation.
I agree with slag glass. Obsidian is rather transparent and typically has a jagged edge.
Slag glass always leaves a rounder more concoidal fracture and is more opaque.