The Cotopaxi Pegmatite Area is a niobium (columbium), tantalum, and ree mine located in Fremont county, Colorado.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation:
Commodity: Niobium (Columbium), Tantalum, REE
Lat, Long: 38.4, -105.66667
Map: View on Google Maps
Cotopaxi Pegmatite Area MRDS details
Site Name
Primary: Cotopaxi Pegmatite Area
Commodity
Primary: Niobium (Columbium)
Primary: Tantalum
Primary: REE
Location
State: Colorado
County: Fremont
District: Cotopaxi Pegmatite Area
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: District
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gadolinite
Ore: Euxenite
Ore: Allanite
Ore: Xenotime
Comments
Comment (Location): This is a general region of pegmatites, mostly feldspar, quartz, and mica, with some pegmatites having REE, niobium, and tantalum minerals.
References
Reference (Deposit): 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.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
