Copper Nuggets from Michigan

Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1982 and over 7 million tons of refined copper were recovered from Michigan's copper mines. In the early 1900s, it led the world in copper production and "Lake Copper" was the purity standard to which other refined copper was compared. Long before the mining operations of the past century began in the Keweenaw, pre-historic peoples mined copper from the mineral rich veins.

Price is for one copper Nugget intuitively picked.

each piece measures ≈ 1.75” to 2” and weighs ≈ 35 to 40 grams 

Copper nuggets may vary in size, color and shape as they are an organic material.

*Crystals should not be used as a replacement for medical treatment or diagnosis. For medical advice, please consult a licensed healthcare specialist.