The Boulder District-Colorado is a tungsten mine located in Boulder 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
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Boulder District-Colorado MRDS details
Site Name
Primary: Boulder District-Colorado
Commodity
Primary: Tungsten
Location
State: Colorado
County: Boulder
District: BOULDER DISTRICT
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: District
Operation Category: Producer
Deposit Type: VEINS
Operation Type: Unknown
Discovery Year: 1900
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: INTERSECTIONS OF BRECCIA REEFS (FAULTS OF LARAMIDE AGE WITH LATER LARAMIDE FRACTURES)
Type: L
Description: PORPHYRY DIKES OF EARLY TERTIARY AGE CUT THE PRECAMBRIAN ROCKS
Alterations
Alteration Type: L
Alteration: SERICITIZATION
Alteration Text: CLAY ALTERATION, SERITICIZED ROCK BORDERING ORE
Alteration Type: L
Alteration: CLAY ALTERATION
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Not available
References
Reference (Deposit): LEMMON, D.M., UNPUBLISHED DATA.
Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.
Reference (Deposit): VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO, STATE OF COLO. MIN. RES. BOARD, P.328-336.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
