I found this around the area where I find copper culture artifacts. I'm not sure if it's a piece of native copper or not. I sawed a piece off with a chop saw to see what's inside.
rofl...yes...native copper...beautiful specimen...difficult to come by...
is that Canadian copper?
nice job on the cut...though...copper has a tendency to overload stones and saw blades...
Yes it's Canadian copper from the Lake Superior/Michipicoten area. I used a chop saw for cutting metal and went slow.....worked fine. This one came from the same place.
Nope not out of a mine....bank of a river. There is a on old copper mine about 50 miles away on a island in Lake Superior, I would assume the natives moved them from there to the river near where they camped and worked them from there.
Looks to me like dendritic native copper, not worked by man.
Precious in any case. Beautiful specimen.
Here is what some other samples look like-
(On some of them, acid has been used to wear away the rock).