Small Cabinet, 7.3 x 5.2 x 4.5 cm
Adventure mine, Greenland, Ontonagon Co., Michigan, USA

A substantial shell or "skull" of copper from the classic old Adventure Mine locality, out of the Hauck Collection - and before that in the "private museum" of Fred Ashman (see old label). The label shows this piece to have come from the 28th level of the mine. Crystallization is quite evident in most areas on the concave display side of this specimen. 7.3 x 5.2 x 4.5cm