EXTREMELY RARE NATIVE SILVER AND COPPER. Ontonagon Mine, Michigan

  
This incredible specimen is a true treasure for any collector of rare minerals. Mined from the renowned Ontonagon Mine in Michigan, this native silver and copper combination is a stunning example of the beauty that can be found in nature. The branching crystalline structure of the copper and silver make this piece a true work of art and it's rarity and value continue to increase as finding there minerals gets harder and harder. Length- 2 inches at widest point.