|
USA | |
| W.C. van Laer, in preparation |
| (In preparation) |
| Sweeney, Ryan (2018), personal communication with Mindat.org. |
| various photographs |
| Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 van Laer, W.C. (1979) Tourmalines of the Homestake Pass. Lapidary Journal, 33, 58-64. |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| ref.: MacFall, P.M. (1951) Gem Hunter's Guide (1st ed.). Science and Mathematics Publishing Company, 187 pages. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Rocks & Minerals 47:3 pp160-164 |
| W.C. van Laer, in preparation |
- Little Pipestone Mining District
| various photographs |
Pohndorf Mine, Toll Mountain, Boulder Batholith, Jefferson County, Montana, USA