Asbestos from Montana, USA
USA | |
| David Frank and Lorraine Edmond (2001) Feasibility for Identifying Mineralogical and Geochemical Tracers for Vermiculite Ore Deposits EPA 910-R-01-002 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 American Mineralogist, Volume 88, pages 1955–1969, 2003 |