Location: American Tunnel, Silverton, Colorodo

                    5.5 x 4.5 cm.

 Beautiful small specimen from this famous locality. Along with the Rhodocrosite crystals are micro chalcopyrite and sphalerite crystals.

One of the reasons this became famous was that miners working in the Sunnyside Mine, part of which was under Lake Emma, accidentally dug into the floor of Lake Emma in 1978. The mine became completely flooded and never was the same again. Most specimens from this location are now only found in private collections.