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| Rocks & Min.: 16: 243. |
| Anaconda Mining Company Collection |
| The Mineralogy of The Butte District, Montana Guilbert and Zeihen 1964 |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Jenkins, Robert E. II, Lorengo, Jerry A. (2002) Butte, Montana: Minerals, Mines and History. The Mineralogical Record, 33 (1) 5-69 |
| Jenkins, Robert E. II, Lorengo, Jerry A. (2002) Butte, Montana: Minerals, Mines and History. The Mineralogical Record, 33 (1) 5-69 |
| Jenkins, Robert E. II, Lorengo, Jerry A. (2002) Butte, Montana: Minerals, Mines and History. The Mineralogical Record, 33 (1) 5-69 |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Specimen from Claude Huber Collection. His label indicates it was personally collected by him in 1950. |
| Anaconda Mining Company Collection |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Jenkins, Robert E. II, Lorengo, Jerry A. (2002) Butte, Montana: Minerals, Mines and History. The Mineralogical Record, 33 (1) 5-69 |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Rocks & Min.: 16: 243. |
| Weed, W.H. (1912) Geology and ore deposits of the Butte district, Montana. Professional Paper 74. US Geological Survey doi:10.3133/pp74 |
| Rick Dalrymple photo |
Butte Mining District, Silver Bow County, Montana, USA