Obsidian Or Coal? in Rocks, Minerals, Gems & Geology Posted March 22, 2022 Cut with pocket knife, found on the property when we bought it. Took 2 of us to move it across the yard. Michigan property, and it was obviously brought here and left by previous owner.
Obsidian Or Coal?
in Rocks, Minerals, Gems & Geology
Posted
Cut with pocket knife, found on the property when we bought it. Took 2 of us to move it across the yard. Michigan property, and it was obviously brought here and left by previous owner.