“4.9 x 2.8 x 2.0 cm. Mohawkite, a rare compound of copper and arsenic, is found only one place in the world - in the Mohawk-Ahmeek area of Keweenaw County in Michigan. This 3-ounce nugget has been polished to show its pretty silvery tone with a hint of gold. From an old stash, which was mined in the 1950s. It had been sitting in a garage for a long, long time. ”