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USA | |
| Larry B. French (2007) Some Zeolite Occurrences in Montana Part II Central Montana. Microprobe X No. 6 pp 8-14 Chakhmouradian, Anton R., Mitchell, Roger H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology, 143 (1) 93-114 doi:10.1007/s00410-001-0333-6 |
| Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 Chris Tucker and John Betts specimens. |
| Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 |
Unnamed natrolite occurrence, Livingston, Park County, Montana, USA