Mohawk Mine, Houghton Co., Michigan, USA
73mm x 60mm x 41mm
Nodule of the copper Arsenide mineral Mohawkite, that only comes from the Michigan Copper Country, that is Keweenaw Penisula. Not easy to find this mineral. Very heavy for it's size
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4,794,166 minIDs have been issued as of 21st Aug 2019 6:14 am BST