Biotite from
USA | |
| 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 |
| Econ Geol (1997) 92:181-209 |
| USGS Bulletin 1674E |
USGS Miscellaneous Field Studies Map 2038 | |
| Andersen, A. K., Zientek, M. L. and Parks, H. L.(2018) Base-metal and PGE Distribution in the Iron Mountain Area of the Stillwater Complex, Montana. Geological Society of America Abstracts with Programs. Vol. 50, No. 6 |