Montana · Madison County
Occurrence
Sappington Deposit
Madison County, Montana, United States
Niobium (Columbium)
Tantalum
REE
Mica
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USGS source ↗
Commodities
Primary
Niobium (Columbium), Tantalum, REE, Mica
Commodity type
B
Deposit
Deposit size
N
Materials
Ore minerals
Fergusonite, Muscovite
Economic & production
Development status
Occurrence
Identification
Deposit ID
10009159
MRDS ID
D001859
Region
NA
Data score
D
Coordinates
45.76657, -111.75086
References
HEINRICH, E. W., 1949, PEGMATITE MINERAL DEPOSITS IN MONTANA, MONTANA BUREAU OF MINES AND GEOLOGY, MEM. 2