This mine has been closed since the early 1900s. As best as I can tell this specimen was collected during the 1970's. On a road trip around the Great Lakes.
Note that was packed with the piece reads. Native copper with drill scar calcite quartz copper oxides in basalt. Isle Royal Mine Dodgeville MI. I see some nice epidote crystals as well, I might add.
[Parcel select - it's a day or two longer, but half the price for most of the country]. I want everyone to be happy with their finds.