M & W Minerals
Walter R. Kellogg
517 294 6709
Lake Superior Copper District, Michigan, USA
Copper Skulls are from the native copper mines of the Keweenaw Peninsula of Michigan. Skulls occur when copper is deposited around a cobble in a conglomerate lode.
10.2 x 6.3 x 4.6 cm
$175 Click here to order this mineral.