Da Yooper Presents
The Worlds Largest Copper Crystal
Believed to be the Worlds Largest Native Copper Crystal, this 11.4 Cm (4.5 in ) Dodecahedron was found in August of 1991 by Joe Ziolkowski at Point Prospect near the tip of the Keweenaw Pensinsula of Michigan's Upper Peninsula.
Joe has agreed to write a report on his experience and it will be posted here as soon as I receive it.
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