TY  - RPRT
TI  - Niobium-rich minerals from the Sheep Creek carbonatite-related deposits, Montana, USA
AU  - Christopher Gammons
AU  - Heather A. Lowers
AU  - Jay M. Thompson
PY  - 2025
UR  - https://pubs.usgs.gov/publication/70277412
ID  - 70277412
ER  -