October 13, 2023
Raw Native Float Copper Keweenaw Michigan - 100 gms - 4 - Nuggents
Pricing & History
-
Sold for
Start Free Trial or Sign In to see what it's worth.
- Sold Date
- Source eBay
You are looking at 4 pieces of raw native glacial float copper from the Keweenaw Peninsula in Northern Michigan, tumbled to shine the copper and remove some matrix They weighs in at about 100 gms.It seems that the longer I carry this, the more I learn about it. I talked to a fellow this Summer that lives in Michigan, has been in some of the mines, and has a collection of copper. He told me that this type of copper was "puked" out of a volcano eons ago and pushed around by glaciers. That explains the smooth but molten look to this piece. He also said that Michigan copper is associated with silver. I have noticed that some pieces have really shiney voids with copper crystals and wondered how that came about. From my rock tumbling experience, I knew that tumbling will not shine a hole in a rock. But, muriatic acid will eat the silver out of the copper, leaving a bright shiney pocket. For your information, I see this more in the smaller pieces. If you don't see a photo of a pocket, this piece probably doen't have one.
Items in the Price Guide are obtained exclusively from licensors and partners solely for our members’ research needs.
If this item contains incorrect or inappropriate information please contact us here to flag it for review.
If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.
If you are the originator/copyright holder of this photo/item and would prefer it be excluded from our community, contact us here for removal.
