Colorado · Fremont County
Occurrence

Cotopaxi Pegmatite Area

Fremont County, Colorado, United States
Niobium (Columbium)TantalumREE
⌖ Show on mapUSGS source ↗
Commodities
PrimaryNiobium (Columbium), Tantalum, REE
Commodity typeM
Deposit
Deposit sizeN
Materials
Ore mineralsAllanite, Euxenite, Gadolinite, Xenotime
Economic & production
Development statusOccurrence
Identification
Deposit ID10009125
MRDS IDD001805
RegionNA
Data scoreD
Coordinates38.40001, -105.66725
References
Hanley, J.B., Heinrich, E.W., and Page, L.R., 1950, Pegmatite investigations in Colorado, Wyoming, and Utah 1942-1944, U.S.G.S. Professional Paper 227, 125 p.