A excellent Michigan combination piece of a vug of bright, flattened copper crystals surrounded by quartz, epidote, prehnite and calcite from the Globe Mine. A large 1.3 cm calcite crystal is on the back. The locality is now a prison facility, so there wont be any more of these and it has value for that alone, aside from the copper! 4.6 x 3.7 x 2.1 cm