MMX20 Copper in Calcite 

Quincy Mine, Hancock, Upper Peninsula, Michigan, United States
3.3x 3.2x 2.4 cm

A classic specimen from Michigan's Upper Peninsula.  This crystal is terminated, and has a second double terminated crystal perched on its edge.  Bright flashes of copper are visible throughout the specimen, and a little is even present outside of the calcite.  There are a couple little bruises here and there, but as the pictures show this hardly detracts from the overall appearance.  There is a small number painted onto the bottom, likely the result of time spent in an old collection.