David K. Joyce


11.0x9.0x8.2 cm
Ojibway Mine
Keweenaw Peninsula
Michigan, USA


Item number: 29588

The top of this basalt fragment is an ope space that has many complex, copper crystals in it. The cavity is lined with quartz crystals and small adularia crystals, I believe. The copper crystals are clusters of elongated crystals. Very interesting, from a great old mine!!