- Chalcocite, Covellite
- Small Cabinet, 7.1 x 5.4 x 3.2 cm
- Butte, Butte District, Silver Bow Co., Montana, USA
- Ex. Dr. Eugene Meieran
Butte covellite is an American classic. Here, the covellite has been replaced (pseudomorphed) by sparkly, black chalcocite. This very special old-timer was in the collection of Gene Meieran, in his sulfide suite. This was likely mined in the 1950s-1960s.