| Location | Specimens | State | | Country | | | Butte Mining District, Silver Bow County, Montana, USA | 1 | Montana |  | USA |  |
| Jetty-Balkan Mine, Olson Gulch Mining District, Deer Lodge County, Montana, USA | 1 | Montana | | USA | |
| Leonard Mine, Butte, Montana, USA | 1 | Montana | | USA | |
| Montana, USA | 1 | Montana | | USA | |
