I found these in the Ouachita Mountains Arkansas. All near a small spring coming out of the ground. I think it?s green obsidian, but haven?t found anything about it in this area.
No. It is glass. While obsidian does occur in green, what you have is clearly not that. Please look up “Burns green obsidian”. Along with the fluff and garbage you should be able to find some quality images of the most common green obsidian in the US.