David K. Joyce


23.4x17.5x3.5 cm
Keweenaw Peninsula

Michigan, USA


Item number: 21111

A rather large plate of solid native copper with a green oxide patina. The plate is mostly composed of copper crystals, some large (up to 25mm) and very sharp! Very impressive piece, indicative of the nature of the copper deposits in the Keweenaw Peninsula many years ago. Extra postage required here! Impressive looking!